in Re Christianson Air Conditioning & Plumbing, LLC and Continental Homes of Texas, Lp ( 2022 )


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  •           Supreme Court of Texas
    ══════════
    No. 20-0384
    ══════════
    In re Christianson Air Conditioning & Plumbing, LLC and
    Continental Homes of Texas, LP,
    Relators
    ═══════════════════════════════════════
    On Petition for Writ of Mandamus
    ═══════════════════════════════════════
    Argued September 28, 2021
    JUSTICE BUSBY delivered the opinion of the Court, in which Chief
    Justice Hecht, Justice Lehrmann, Justice Devine, Justice Blacklock,
    Justice Bland, Justice Huddle, and Justice Young joined, and in which
    Justice Boyd joined except as to Part II.B.
    This petition for writ of mandamus concerns the scope of available
    discovery regarding personal jurisdiction under Texas Rule of Civil
    Procedure 120a. After the parties failed to agree on the scope of two
    corporate representative depositions, the trial court granted a motion to
    compel the depositions on a list of thirty topics proposed by the plaintiffs.
    The court of appeals granted mandamus relief for the nonresident
    defendant, concluding that the trial court abused its discretion when it
    compelled discovery on certain topics that touched both jurisdictional
    and merits issues. The plaintiffs seek mandamus relief from this Court,
    contending that—at least where specific jurisdiction is asserted—Rule
    120a discovery need not relate exclusively to the jurisdictional issue. We
    agree.
    Neither the text of Rule 120a nor our cases support the court of
    appeals’ position. The trial court did not abuse its discretion simply by
    compelling discovery on jurisdictional topics that overlap with the
    merits. Rather, we hold that trial courts should apply the following
    standard: the information sought must be essential to prove at least one
    part of the plaintiff’s theory of personal jurisdiction. In addition, general
    principles that limit the scope of discovery apply equally to jurisdictional
    discovery. We conditionally grant mandamus relief, direct the court of
    appeals to vacate its mandamus order, and instruct the trial court to
    apply these standards to the particular deposition topics that remain in
    dispute.
    BACKGROUND
    The underlying suit concerns water leaks from plastic pipe made
    of crosslinked polyethylene, commonly known as PEX. The relators—
    Texas plumbing installer Christianson Air Conditioning and Plumbing,
    LLC and homebuilder Continental Homes of Texas, LP (together
    “Christianson”)—sued Indiana pipe manufacturer NIBCO, alleging that
    NIBCO-branded PEX leaked after Christianson installed it in
    thousands of Central Texas homes built by Continental and others.
    Christianson also brought claims for strict products liability, negligence,
    and fraud—among others—against the real party in interest, Canadian
    engineering firm Jana Corporation. Christianson alleged that NIBCO
    2
    hired Jana to reformulate NIBCO’s defective PEX pipe and to maintain
    certification of the pipe in the Texas market.
    Jana filed a special appearance to contest personal jurisdiction
    under Texas Rule of Civil Procedure 120a, asserting that Christianson
    could not establish minimum contacts between Jana and Texas. In
    response to Jana’s special appearance, Christianson moved for a
    continuance and to compel jurisdictional discovery.
    While Jana’s special appearance and Christianson’s motions were
    pending, the parties entered into a Rule 11 agreement. Jana agreed to
    make two of its executives—Wayne Bryce and Ken Oliphant—available
    for corporate representative depositions related to the special
    appearance, but the parties did not reach complete agreement on the
    scope of the depositions.
    At the trial court hearing on Christianson’s motion to compel,
    Christianson proposed an amended list of thirty deposition topics. Jana
    argued that the topics impermissibly touched the merits of the case. The
    trial court received supplemental briefing after the hearing and granted
    Christianson’s motion to compel, ordering that the depositions cover all
    thirty topics. Jana then filed a petition for writ of mandamus in the
    Third Court of Appeals, challenging nine of the deposition topics. The
    court of appeals granted Jana mandamus relief on eight of the nine
    topics, holding that the trial court abused its discretion because
    jurisdictional discovery “must relate exclusively to the jurisdictional
    question.” In re Jana Corp., 
    628 S.W.3d 526
    , 528, 530 (Tex. App.—
    Austin 2020, orig. proceeding).
    3
    Christianson then filed a petition for writ of mandamus in this
    Court, arguing that the trial court did not abuse its discretion when it
    ordered jurisdictional discovery that overlapped with the merits. In
    Christianson’s view, overlap between jurisdictional and merits issues is
    inevitable when a plaintiff seeks discovery regarding a defendant’s
    forum contacts related to the litigation.
    Christianson challenges the court of appeals’ holding as to six
    specific topics. The topics that remain in dispute are:
    No. 17: JANA’s studies, tests, investigations and
    assessments of NIBCO’s PEX 1006 as it relates to the
    performance of NIBCO PEX 1006 in field conditions in
    Texas.
    No. 18: JANA’s studies, tests, investigations, and
    assessments of PE and PEX generally as it relates to the
    performance of PE and PEX in field conditions in Texas.
    No. 21: JANA’s efforts to assist NIBCO in maintaining
    certification for the sale of NIBCO PEX products at issue
    in this lawsuit which caused injury to the Plaintiff in
    Texas.
    No. 24: JANA’s knowledge of problems with PEX pipe sold
    by NIBCO and CPI (e.g., leaks, cracks, failures, pinhole
    leaks, oxidative failure, outside diameter, certain failures
    to meet ASTM 876 and F2023, variability in the PEX pipe,
    aggressive environments, etc.) at issue in this lawsuit
    which caused injury to the Plaintiff in Texas.1
    No. 27: JANA’s knowledge and impact of conditions,
    including but not limited to, high temperature, high
    pressure, hot chlorinated water, level of antioxidants, level
    1   CPI is a prior owner of NIBCO’s PEX product line.
    4
    of cross-linking, levels of stabilization, electronic beaming,
    oxidative degradation, and UV radiation on PEX pipe such
    as the NIBCO PEX products at issue in this lawsuit with
    end use or field conditions like those in Texas.
    No. 30: JANA’s testing, inspection, investigation and
    assessment of any failed NIBCO PEX products at issue in
    this lawsuit.
    ANALYSIS
    I.    Discovery under Rule 120a is limited to information
    essential to the plaintiff’s theory of personal jurisdiction.
    To determine the scope of available discovery regarding personal
    jurisdiction, we begin with the relevant rule.       Texas Rule of Civil
    Procedure 120a addresses the procedures for making and contesting
    special appearances.     Among other things, the rule sets out the
    materials that may form the basis of a trial court’s ruling on a special
    appearance: “the pleadings, any stipulations made by and between the
    parties, such affidavits and attachments as may be filed by the parties,
    the results of discovery processes, and any oral testimony.” TEX. R. CIV.
    P. 120a(3). We have described “relevant discovery” as “a vital part of
    resolving a special appearance.” Exito Elecs. Co. v. Trejo, 
    142 S.W.3d 302
    , 307 (Tex. 2004).
    When a party opposing a special appearance lacks “facts
    essential” to its opposition, a trial court may order a continuance to allow
    the party to obtain jurisdictional discovery. TEX. R. CIV. P. 120a(3)
    (“Should it appear from the affidavits of a party opposing the motion
    that he cannot . . . present by affidavit facts essential to justify his
    opposition, the court may order a continuance to permit affidavits to be
    5
    obtained or depositions to be taken or discovery to be had or may make
    such other order as is just.”). Continuances for jurisdictional discovery
    are reviewed under an abuse-of-discretion standard. BMC Software
    Belg., N.V. v. Marchand, 
    83 S.W.3d 789
    , 800 (Tex. 2002) (concluding
    trial court did not abuse its discretion by denying party’s motion for
    continuance to conduct further jurisdictional discovery where party had
    “ample time to conduct, and did conduct, discovery”); see Villegas v.
    Carter, 
    711 S.W.2d 624
    , 626 (Tex. 1986).
    Though the text of Rule 120a does not address the scope of
    jurisdictional discovery directly, its “essential” facts standard for a
    continuance is informative, and our prior cases have suggested some
    further guiding principles. In In re Doe, we observed that “[d]iscovery is
    limited to matters directly relevant” to the jurisdictional issue. 
    444 S.W.3d 603
    , 608 (Tex. 2014) (orig. proceeding).            Thus, in the
    jurisdictional context, it is not enough that the discovery “is reasonably
    calculated to lead to the discovery of admissible evidence.” TEX. R. CIV.
    P. 192.3(a). Rather, the discovery must target evidence that would make
    a disputed fact “of consequence in determining” the jurisdictional issue
    “more or less probable.” TEX. R. EVID. 401. Merits discovery on matters
    not directly relevant to jurisdiction should be taken only after a special
    appearance is denied. Dawson–Austin v. Austin, 
    968 S.W.2d 319
    , 321,
    323 (Tex. 1998); see TEX. R. CIV. P. 120a(2) (“Any motion to challenge the
    jurisdiction provided for herein shall be heard and determined before a
    motion to transfer venue or any other plea or pleading may be heard.”).
    Nothing in Rule 120a or our cases suggests that jurisdictional
    discovery must relate exclusively to the jurisdictional question, as the
    6
    court of appeals held.         To the contrary, we have indicated that
    jurisdictional discovery may overlap with merits issues in certain
    circumstances. See Bland Indep. Sch. Dist. v. Blue, 
    34 S.W.3d 547
    , 554–
    55 (Tex. 2000) (comparing evidentiary inquiry to establish personal
    jurisdiction with similar inquiries—such as challenges to standing—
    that serve as “prerequisite[s] to the plaintiff’s presentation of its
    substantive claims”). Indeed, Rule 120a itself recognizes that issues of
    fact determined in a special appearance may also be relevant to the
    merits, as it expressly leaves those issues open for redetermination at
    the merits stage. See TEX. R. CIV. P. 120a(2) (“No determination of any
    issue of fact in connection with the objection to jurisdiction is a
    determination of the merits of the case or any aspect thereof.”).
    Particularly when a plaintiff asserts a theory of specific personal
    jurisdiction, information that is essential in determining whether the
    required “connection between the defendant, the forum, and the
    litigation”2 exists may also be relevant to the merits. For example, if a
    plaintiff sues a nonresident manufacturer or non-manufacturing seller
    under the Texas Products Liability Act and alleges specific jurisdiction
    under a stream-of-commerce-plus theory, the plaintiff must show that
    the defendant placed a product in the stream of commerce to satisfy
    elements of both the jurisdictional theory and the statutory standard for
    liability on the merits. See TEX. CIV. PRAC. & REM. CODE § 82.001; Asahi
    Metal Indus. Co. v. Superior Ct., 
    480 U.S. 102
    , 112 (1987) (plurality
    opinion). Discovery about placement of the product in the stream of
    2   Moki Mac River Expeditions v. Drugg, 
    221 S.W.3d 569
    , 584 (Tex.
    2007).
    7
    commerce, if disputed, should not be disallowed merely because that
    discovery is also relevant to whether the defendant qualifies as a
    statutory seller.
    Rule 120a’s “facts essential” phrase has provided a workable
    standard for managing discovery in the summary judgment context
    under both Texas Rule of Civil Procedure 166a(g) and Federal Rule of
    Civil Procedure 56(d).3 Courts have not construed the phrase “facts
    essential” in our Rule 166a(g) to mean exclusive. Rather, an “essential”
    fact is one necessary to resolve the issue at hand;4 thus, “facts essential”
    to one issue may also be relevant to another. Likewise, the Supreme
    Court of the United States has interpreted Federal Rule 56(d) to provide
    “limited discovery . . . for the purpose of showing facts sufficient to
    withstand a summary judgment motion.” First Nat’l Bank of Ariz. v.
    Cities Serv. Co., 
    391 U.S. 253
    , 265 (1968) (emphasis added).                  Like
    “necessary,” “sufficient” does not indicate exclusivity.
    Because neither Rule 120a nor Doe imposes an exclusivity
    requirement, the trial court did not abuse its discretion simply because
    3   See TEX. R. CIV. P. 166a(g) (“Should it appear from the affidavits of a
    party opposing the motion [for summary judgment] that he cannot for reasons
    stated present by affidavit facts essential to justify his opposition, the court
    may refuse the application for judgment or may order a continuance to permit
    affidavits to be obtained or depositions to be taken or discovery to be had or
    may make such other order as is just.”); FED. R. CIV. P. 56(d)(2) (“If a
    nonmovant shows by affidavit or declaration that, for specified reasons, it
    cannot present facts essential to justify its opposition, the court may: . . . allow
    time . . . to take discovery . . . .”).
    4  See Essential, BLACK’S LAW DICTIONARY (11th ed. 2019) (“1. Of,
    relating to, or involving the essence or intrinsic nature of something. 2. Of the
    utmost importance; basic and necessary.”).
    8
    it ordered jurisdictional depositions on topics that also touched merits
    issues.    “Essential” (Rule 120a(3)) and “directly relevant” (Doe) are
    useful starting points for analyzing the scope of jurisdictional discovery.
    Courts must apply these standards with the disputed issues
    firmly in mind. Thus, we hold that information sought in jurisdictional
    discovery must be essential to prove at least one disputed factor that is
    necessary to the plaintiff’s proposed theory or theories of personal
    jurisdiction.5 Discovery is not available at the special appearance stage
    on any factor that is undisputed, as it is not essential to the plaintiff’s
    opposition.
    General principles that limit the scope of discovery also apply
    equally to jurisdictional discovery. For example, discovery “should be
    limited by the court if it determines” that the “discovery sought is
    unreasonably cumulative or duplicative, or is obtainable from some
    other source that is more convenient,” or if “the burden . . . outweighs
    its likely benefit.” TEX. R. CIV. P. 192.4. Similarly, discovery requests
    must be “reasonably tailored” and not “overbroad.” In re CSX Corp., 
    124 S.W.3d 149
    , 152–53 (Tex. 2003) (orig. proceeding). Requests must be
    “proportional,” In re State Farm Lloyds, 
    520 S.W.3d 595
    , 599 (Tex. 2017)
    (orig. proceeding), and not “overly burdensome,” In re Weekley Homes,
    L.P., 
    295 S.W.3d 309
    , 315 (Tex. 2009) (orig. proceeding).
    5  See In re Perl, No. 05-20-00170-CV, 
    2020 WL 2847533
    , at *6 (Tex.
    App.—Dallas June 2, 2020, orig. proceeding) (mem. op.) (rejecting
    jurisdictional interrogatories not “confined to any of the three purposeful
    availment factors: Relators’ own activities, aimed at Texas, or the specific
    benefit, advantage, or profit Relators would earn from a Texas relationship”).
    9
    II.   Although the disputed deposition topics include matters
    essential to Christianson’s theory of personal jurisdiction
    over Jana, they are not tailored to cover only those
    matters.
    A.     Defining the essential topics
    Applying    these   principles     here,   the   record   shows   that
    Christianson is using a stream-of-commerce-plus theory to argue that
    Texas courts have specific personal jurisdiction over Jana in this suit.
    Christianson’s challenged jurisdictional discovery must therefore seek
    facts essential to prove at least one disputed part of that theory.
    The Due Process Clause of the U.S. Constitution imposes no
    obstacle to a Texas court’s exercise of personal jurisdiction over a
    nonresident defendant if that defendant has minimum contacts with the
    State and the exercise of jurisdiction comports with traditional notions
    of fair play and substantial justice. BMC Software, 83 S.W.3d at 795
    (citing Int’l Shoe Co. v. Washington, 
    326 U.S. 310
    , 316 (1945)). These
    constitutional requirements are the reason that courts must guard the
    boundaries of jurisdictional discovery carefully, keeping in mind that
    they cannot constitutionally exercise jurisdiction over a defendant
    challenging jurisdiction unless the plaintiff proves these requirements.
    This Court “has repeatedly emphasized that discovery may not be used
    as a fishing expedition,” and ensuring that “requests [are] reasonably
    tailored to include only matters relevant to” the disputed issues is
    particularly important in the jurisdictional context. In re Am. Optical
    Corp., 
    988 S.W.2d 711
    , 713 (Tex. 1998) (orig. proceeding) (per curiam).
    A nonresident defendant’s contacts may give rise to either general
    or specific jurisdiction. Guardian Royal Exch. Assurance, Ltd. v. Eng.
    10
    China Clays, P.L.C., 
    815 S.W.2d 223
    , 227–28 (Tex. 1991). General
    jurisdiction requires that a defendant be “essentially at home” in the
    forum State. Goodyear Dunlop Tires Operations, S.A. v. Brown, 
    564 U.S. 915
    , 919 (2011). Specific jurisdiction exists when (1) the defendant has
    “made minimum contacts with Texas by purposefully availing itself of
    the privilege of conducting activities [in the state],” and (2) the
    defendant’s potential liability arose from or is related to those contacts.
    Moki Mac River Expeditions v. Drugg, 
    221 S.W.3d 569
    , 576 (Tex. 2007).
    Because specific jurisdiction is at issue here, we examine these two
    elements in turn.
    To show purposeful availment, a plaintiff must prove that a
    nonresident defendant seeks a benefit, advantage, or profit from the
    forum market. Michiana Easy Livin’ Country, Inc. v. Holten, 
    168 S.W.3d 777
    , 785 (Tex. 2005). Only the defendant’s contacts are relevant, not the
    unilateral activity of another party or third person. And those contacts
    “must be purposeful rather than random, fortuitous, or attenuated.”
    Moncrief Oil Int’l, Inc. v. OAO Gazprom, 
    414 S.W.3d 142
    , 151 (Tex. 2013)
    (quoting Retamco Operating, Inc. v. Republic Drilling Co., 
    278 S.W.3d 333
    , 338–39 (Tex. 2009)). In products liability cases, showing that the
    defendant placed the product in the stream of commerce is not alone
    sufficient to establish purposeful availment; some additional conduct or
    “plus factor”—such as design for use in the target market—must also be
    shown. See Asahi, 
    480 U.S. at 112
     (explaining that “[a]dditional conduct
    of the defendant may indicate an intent or purpose to serve the market
    in the forum State, for example, designing the product for the market in
    the forum State”); Spir Star AG v. Kimich, 
    310 S.W.3d 868
    , 873 (Tex.
    11
    2010); see also Luciano v. SprayFoamPolymers.com, LLC, 
    625 S.W.3d 1
    ,
    18 (Tex. 2021) (“Additional conduct that [the defendant] tapped into the
    Texas market is evinced by its use of a Texas distribution center and a
    Texas sales representative to create a market to sell to local installers.”).
    Turning to relatedness, a plaintiff must demonstrate a
    “substantial     connection”      between      the    “defendant’s      forum
    contacts . . . and the operative facts of the litigation.” Moki Mac, 221
    S.W.3d at 585.      A special appearance must be granted when this
    connection is “too attenuated to satisfy specific jurisdiction’s due-process
    concerns.” Id. at 588. The foreseeability of litigation in the forum is
    relevant in determining whether a substantial connection exists.
    Guardian Royal, 815 S.W.2d at 227.
    Here, the parties’ dispute concerns the permissible scope of
    corporate representative depositions, a matter that courts commonly
    address on a topic-by-topic basis.          Given the theory of specific
    jurisdiction that Christianson asserts, each topic must target discovery
    that is essential to prove (1) Jana’s purposeful availment (placement in
    the stream and “additional conduct”) or (2) relatedness (substantial
    connection between the forum contacts and the litigation). A proper
    topic need not be essential to all disputed factors simultaneously.6
    6 We have not required plaintiffs to use the same evidence to prove all
    disputed elements. See Luciano, 625 S.W.3d at 17 (rejecting “conflat[ion of]
    the purposeful-availment inquiry and the relatedness inquiry,” which are “two
    co-equal components” of specific jurisdiction (quoting Moki Mac, 221 S.W.3d at
    579)); id. at 18 (“[I]f the actionable conduct occurs in Texas, we have never
    required that the lawsuit also arise directly from the nonresident defendant’s
    additional conduct.”). Thus, for example, a proper topic may seek facts
    essential to prove “additional conduct” without also seeking facts essential to
    12
    The six deposition topics currently in dispute encompass some
    matters that are essential to prove purposeful availment or relatedness
    under Christianson’s stream-of-commerce-plus theory of personal
    jurisdiction. But they also include matters that are not essential in
    determining either factor, and they are overbroad and duplicative in
    certain respects. We do not fault the parties or the trial court for failing
    to anticipate the contours of the approach we have articulated today.
    Rather, we conclude that the parties should have an opportunity to
    discuss and reformulate the six topics with this approach in mind, and
    the trial court should have the opportunity in the first instance to rule
    on any disputes that remain.
    B.     Tailoring the topics
    To assist in this effort, we observe that the current deposition
    topics regarding Jana’s alleged design and compliance services could
    include questions essential in determining whether Jana engaged in
    additional conduct indicating its purpose to serve the Texas market
    under the stream-of-commerce-plus theory. Christianson claims that its
    proposed discovery seeks information about “Jana’s role in the
    reformulation project and in maintaining certification,” as well as Jana’s
    knowledge of “product needs” in Texas. Questions that target whether
    Jana had such knowledge and used it to reformulate products for the
    Texas market are essential to determine whether Jana’s actions meet
    the plus factor of “designing the product for the market in the forum
    “placement” of the product in the stream of commerce, or facts that tie the
    additional conduct causally to the litigation.
    13
    State.” Asahi, 
    480 U.S. at 112
    . But Christianson’s topics regarding
    Jana’s general knowledge or activities do not seek essential information.
    And questions regarding any other party’s intent to target the Texas
    market are not relevant because that intent cannot be imputed to Jana.
    Importantly, simply inserting the phrase “in Texas” or “in Texas
    field conditions” into a topic does not make it essential to prove specific
    jurisdiction. Knowledge of how a product works “in Texas”—the subject
    of one disputed topic—is akin to “awareness that the stream of
    commerce may or will sweep the product into the forum State,” which is
    an insufficient basis for specific jurisdiction. See 
    id.
     Jana’s knowledge
    of, or tests concerning, how a product at issue functions in Texas field
    conditions may be essential in determining purposeful availment under
    a stream-of-commerce-plus theory if such knowledge or tests are tied to
    Jana’s intent to target the market in Texas. See 
    id.
     Likewise, any
    design work that Jana did using knowledge of Texas field conditions
    may be essential in determining whether there is a substantial
    connection between Jana’s alleged contacts and Christianson’s claims
    against it. But mere general awareness of a range of conditions within
    which a product must operate does not itself show a purpose to serve all
    markets in which those conditions exist.
    Moreover, applying general discovery principles, the disputed
    topics are too broad. See CSX, 124 S.W.3d at 152–53. Though deposition
    topics—by their nature—may be broader in scope than individual
    deposition questions or interrogatories, the principle that discovery
    14
    requests should not be overbroad nevertheless applies.7 See id. at 153
    (noting that we have not “identified different standards for evaluating
    various discovery methods”) (citing K Mart Corp. v. Sanderson, 
    937 S.W.2d 429
    , 431 (Tex. 1996)); In re Allstate Fire & Cas. Ins. Co., 
    617 S.W.3d 635
    , 643–44, 47 (Tex. App.—Houston [14th Dist.] 2021, orig.
    proceeding) (concluding that some deposition topics at issue were “broad
    enough to encompass other matters irrelevant to the underlying . . .
    claim”). The topics should be tailored to provide further limitations as
    to time and subject matter. See CSX, 124 S.W.3d at 153 (citing Texaco,
    Inc. v. Sanderson, 
    898 S.W.2d 813
    , 815 (Tex. 1995)).
    Finally, some of the disputed topics are cumulative or duplicative
    of topics that the parties do not dispute. See TEX. R. CIV. P. 192.4.
    Taking the total list of thirty proposed topics into consideration, some
    disputed topics target information already accessible through topic 19,
    which includes “Jana’s participation in studies, tests, investigations and
    assessments of the performance of plastic tubing in Texas.”               The
    mandamus record does not indicate that Jana challenged topic 19.
    Studies, tests, and investigations related to the performance of “plastic
    tubing” could include the same studies, tests, and investigations sought
    in topics 17, 18, and 30. Whether that overlap constitutes “unreasonably
    cumulative or duplicative” discovery is a question for the trial court. See
    TEX. R. CIV. P. 192.4 (emphasis added).
    7 We recognize that it is common practice to provide topics rather than
    individual questions when noticing the depositions of corporate
    representatives, and we do not disturb this general practice. But in contexts
    such as jurisdictional disputes where the availability of discovery is limited,
    topics should be tailored to take those limits into account.
    15
    III.   Mandamus relief is proper.
    Having concluded that the court of appeals clearly erred in
    restricting discovery more than Rule 120a requires, we next consider
    whether mandamus relief is a proper remedy. We review a court of
    appeals’ issuance of a writ of mandamus for an abuse of discretion, but
    in doing so our focus remains on the trial court’s order. In re Turner,
    
    591 S.W.3d 121
    , 124 (Tex. 2019) (orig. proceeding) (citing In re State,
    
    556 S.W.3d 821
    , 826 (Tex. 2018) (orig. proceeding)). A court of appeals
    may issue a writ of mandamus only if the trial court abused its
    discretion and there is no adequate remedy by appeal.         Johnson v.
    Fourth Ct. of Appeals, 
    700 S.W.2d 916
    , 917 (Tex. 1985). “If the trial
    court did not abuse its discretion, then the court of appeals erred in
    granting mandamus relief.” In re Am. Homestar of Lancaster, Inc., 
    50 S.W.3d 480
    , 483 (Tex. 2001) (orig. proceeding) (citing Johnson, 700
    S.W.2d at 917); see also In re Panchakarla, 
    602 S.W.3d 536
    , 539 (Tex.
    2020) (orig. proceeding); Scott v. Twelfth Ct. of Appeals, 
    843 S.W.2d 439
    ,
    440 (Tex. 1992) (orig. proceeding).
    As we have explained, the trial court did not abuse its discretion
    for the reason identified by the court of appeals. We conclude that the
    court of appeals erred when it held that discovery on eight of the nine
    disputed deposition topics should be denied because Rule 120a(3)
    discovery must relate exclusively to the jurisdictional issue. Therefore,
    mandamus relief is proper.
    16
    CONCLUSION
    Because the court of appeals’ grant of mandamus relief narrowing
    Christianson’s jurisdictional discovery was based on a legally incorrect
    understanding of the available scope of discovery, we conditionally grant
    mandamus relief to Christianson. We direct the court of appeals to
    vacate its mandamus order, and we instruct the trial court to apply the
    standards explained above to the six deposition topics that remain in
    dispute. Our writ will issue only if the court of appeals fails to act in
    accordance with this opinion.
    J. Brett Busby
    Justice
    OPINION DELIVERED: February 4, 2022
    17