Alister Watt, et al. v. OKCoin USA Inc., et al.

District Court, N.D. California·Decided March 31, 2026·No. 4:25-cv-00368·Unknown

Opinion

ALISTER WATT, et al., Case No. 25-cv-00368-JSW

Plaintiffs, ORDER GRANTING MOTION TO v. DISMISS AMENDED CLASS ACTION COMPLAINT OKCOIN USA INC., et al., Re: Dkt. No. 28 Defendants.

This matter comes before the Court upon consideration of the motion to dismiss filed by Defendants OKCoin USA, Inc. (“OKCoin”), OKC Holdings Corporation (“Holdings”), and Aux Cayes FinTech Co. Ltd. (“Aux Cayes”) (collectively “Defendants”).1 The Court has considered the parties’ papers, relevant legal authority, including the statements of recent decisions filed by Defendants, and the record in this case. For reasons that follow, the Court HEREBY GRANTS Defendants’ motion, with leave to amend the Plaintiffs’ state law claims. Plaintiffs Alister Watt (“Watt”) and James Supples (“Supples”) are victims of cryptocurrency theft. They allege Defendants enabled the thieves to launder their cryptocurrency and render it untraceable.2 (See AC ¶¶ 123, 125.) Cryptocurrency is held in digital wallets that 1 Plaintiffs define “OKC Holdings Corporation and all predecessor organizations and entities” as “OKC Group” in the Amended Complaint. (Amended Complaint (“AC”) at 1:3-4.) For purposes of clarity and to clearly distinguish the named Defendants, the Court defines OKC Holdings Corporation as “Holdings.”

2 Watt filed the original complaint on January 10, 2025. After Defendants moved to dismiss, Watt filed the Amended Complaint and added Supples as a Plaintiff. Supples also is a named Plaintiff in a case pending in the United States District Court for the Southern District of store “passkeys used to sign for cryptocurrency transactions and provide[] the interface that lets users access crypto on the blockchain, and interact with protocols, such [as] decentralized exchanges … and bridges which enable users to send crypto across different blockchains.” (Id. ¶ 36.) In general, such transactions are trackable. (Id. ¶¶ 36-38.) Crypto laundering occurs when a bad actor removes the ability to track and locate crypto. (Id. ¶ 39.) Plaintiffs allege that crypto laundering “underpins all other forms of cryptocurrency-based crime. If there’s no way to access the funds, there’s no incentive to commit crimes involving cryptocurrency in the first place.” (Id. (quoting 2022 Crypto Crime Report by Chainalysis).) Mingxing Xu, a/k/a Star Xu (“Xu”), founded Holdings in 2015. Plaintiffs allege Holdings is the parent organization of a group of legal entities that, together, “operate one of the largest cryptocurrency platforms in the world” (the “OKX Platform”). Those entities include Aux Cayes, a Seychelles registered company, and OKCoin, which Xu launched in June 2013. OKCoin moved its headquarters to San Franisco in 2017. (AC ¶¶ 1, 25-28.) The Court refers to Holdings and Aux Cayes collectively as the “Foreign Defendants.” According to Plaintiffs, Holdings “through its subsidiaries, operates and controls the cryptocurrency exchanges located at www.okx.com … and www.okcoin.com[.]” (Id. ¶ 25.) Xu “owned at least 74.3% of [Holdings] through affiliated entities and exercised full and absolute control over each of the” entities. (Id.) Plaintiffs also allege Xu “created, controlled, and directly managed the day-to-day affairs of [Holdings] and each of the web of companies” associated with Holdings. (Id.; see also id. ¶¶ 26-27 (alleging Xu “controlled” Aux Cayes and OKCoin at all relevant times).) Plaintiffs allege that Aux Cayes makes the OKX Platform available to users outside the United States, although it has some offices located in the United States. (Id. ¶ 26.) Plaintiffs allege Defendants’ primary crypto exchange, OKX.com, is a money transmitting business (“MTB”).3 MTBs are required to register with the United States Department of the Treasury’s Financial Crimes Enforcement Network (“FinCEN”). MTBs also are required to comply with the Bank Secrecy Act (“BSA”) by implementing and maintaining an anti-money laundering program (“AML”) and by following “Know Your Customer (‘KYC’)” rules. (Id. ¶¶ 3, 42, 73-85.) Watt resides in Charlotte, North Carolina. In 2023, a third party stole crypto worth more than $725,000 from him. Supples resides in San Juan, Puerto Rico. On or about December 19, 2024, a third party targeted and stole crypto worth more than $1.34 million from him. Plaintiffs allege that “[a]fter extensive investigation, it was determined that a material portion of the cryptocurrency stolen from [them] was sent to at least one account at OKX.com.” (Id. ¶¶ 21-22.) Plaintiffs allege that even though Holdings and Aux Cayes were not licensed in the United States, they still served customers in the United States. U.S. based customers could access OKX.com through a virtual private network (“VPN”) that made it appear as if the customer had logged in from outside the United States. (Id. ¶ 45; see also id. ¶ 107.) Plaintiffs also allege that, at least until 2022, Holdings and Aux Cayes failed to adequately implement AML and KYC policies and procedures. OKCoin allegedly functioned as a “smokescreen and distraction to regulators” so Holdings and Aux Cayes could continue to service U.S. based customers, in violation of the law. (Id. ¶ 6.) In February 2025, Aux Cayes entered a guilty plea in the United States District Court for the Southern District of New York, to operating an unlicensed MTB from at least 2018 through at least early 2024. (Id. ¶ 9; Declaration of Eric I. Niehaus, ¶ 3, Ex. A (Plea Agreement and Statement of Facts).)4 According to Plaintiffs, if “Defendants” had implemented AML and KYC policies and procedures, the OKX Platform “would not have become a magnet and a hub for cryptocurrency laundering, and it is highly unlikely that Plaintiffs’ stolen cryptocurrency would have been laundered through OKX and rendered untraceable thereafter.” (Id. ¶ 92; see also id. ¶¶ 46, 84, 100.) Based on these and other allegations the Court will address as necessary in the analysis, Plaintiffs bring putative class claims for alleged violations of 18 U.S.C. section 1962(c) and

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Alister Watt, et al. v. OKCoin USA Inc., et al., (N.D. Cal. 2026).

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