Also, in light of this incident, we will implement a series of risk management enhancements, which are in line with our futures roadmap released on July 17, 2018, to prevent any similar cases from occurring again. The enhancements are as follows: 1. Anti-manipulation policy to be released on Aug 4, 2018 (now in production) Different measures will be employed on different margin modes. Cross-margin Mode: Adopting a scaling margin ratio.

Yours truly, OKX Oct 16, 2018

Affected tokens: PSTAKE Affected trading pairs: PSTAKE/USDT, PSTAKE/USDDelisting We will suspend Buy, Sell and Convert services for the affected token starting from 3pm (UTC+8) on 6 December 2025. We will delist the affected USD- and USDT-denominated spot trading pairs starting from 3pm (UTC+8) on 9 December and 12 December 2025 respectively. We recommend users to cancel orders pertaining to the affected token and trading pairs before the scheduled delistings.

Yours truly, OKX Feb 6, 2018

Yours truly, OKX Jun 6, 2018

Note: (1) Regarding Cryptopedia Season 6, please verify the quests promptly. Quests that have been completed but not verified will not be eligible for the prize draw. (2) Each quest requires at least 15 minutes for verification. Please avoid verifying quests near the end of Cryptopedia Season 6 to prevent potential failures caused by data delays.

Regards, OKX 13:17 Mar 30, 2018 -------------------------------------------------------------------------------------------------------- Dear valued customers, At 5:00-6:30 on Mar 30, 2018 (Hong Kong Time), a number of users performed unusual transactions to manipulate the price of BTC quarterly futures contract, making it deviate greatly from the BTC index.

OKX January 15, 2018

You may see below for the updated fee schedule , which will be effective on 00:00 Sep 7, 2018 (HKT). OKX New Fee Schedule (to be effective at 00:00 Sep 7, 2018, HKT): Regards, OKX

Yours truly, OKX Mar 13, 2018 -------------Mar 15, 2018, Update----------------- ONT withdrawal launch will be postponed due to a NEO wallet issue. We will make a further announcement on the updated go live schedule. We apologize for any inconvenience caused. OKX Mar 15, 2018

Yours truly, OKX January 30, 2018

Yours truly, OKX May 14, 2018

INT deposit - 20:00 Jan 11, 2018 (Hong Kong Time) 2. INT spot trading - 16:00 Jan 12, 2018 (Hong Kong Time) 3. INT withdrawal - Jan 15, 2018 (Hong Kong Time） As the transaction of digital assets involve extensive risks, you are reminded to assess your risk tolerance before participating in these trades. As always, OKX will do all it takes to provide you with the best products and services. OKX January 11, 2018

FAIR deposit - 16:00 Jan 8, 2018 (Hong Kong Time) 2. FAIR spot trading - 16:00 Jan 8, 2018 (Hong Kong Time) 3. FAIR withdrawal - Jan 10, 2018 (Hong Kong Time) As the transaction of digital assets involve extensive risks, you are reminded to assess your risk tolerance before participating in these trades. As always, OKX will do all it takes to provide you with the best products and services. OKX January 8, 2018

AAC deposit - 19:00 Jan 5, 2018 (Hong Kong Time) 2. AAC spot trading - 16:00 Jan 8, 2018 (Hong Kong Time) 3. AAC withdrawal - Jan 9, 2018 (Hong Kong Time) As the transaction of digital assets involves extensive risks, you are reminded to assess your risk tolerance before participating in these trades. As always, OKX will do all it takes to provide you with the best products and services. OKX January 5, 2018