— 80% front-month (HGK6), 20% next-month (HGN6) • 2026-04-09 5:30PM ET — 60% front-month, 40% next-month • 2026-04-10 5:30PM ET — 40% front-month, 60% next-month • 2026-04-13 5:30PM ET — 20% front-month, 80% next-month • 2026-04-14 5:30PM ET — 0% front-month, 100% next-month (rollover complete) CLUSDT (Crude Oil) is currently referencing the CLK6 contract and will roll into CLM6. • 2026-04-08 5:30PM ET — 80% front-month (CLK6), 20% next-month (CLM6) • 2026-04-09 5:30PM ET — 60% front-month, 40%

— 80% front-month (BZM6), 20% next-month (BZN6) • 2026-04-09 5:30PM ET — 60% front-month, 40% next-month • 2026-04-10 5:30PM ET — 40% front-month, 60% next-month • 2026-04-13 5:30PM ET — 20% front-month, 80% next-month • 2026-04-14 5:30PM ET — 0% front-month, 100% next-month (rollover complete) BZ designated contract month codes: Jan-H, Feb-J, Mar-K, Apr-M, May-N, Jun-Q, Jul-U, Aug-V, Sep-X, Oct-Z, Nov-F, Dec-G.

Please take note of the following details:Listing timeline RLUSD deposits will open at 7:00 ET on Apr 29, 2026. RLUSD pre-open will take place from 9:00 to 11:00 ET on Apr 29, 2026. RLUSD/USDT spot trading will open at 11:00 ET on Apr 29, 2026. RLUSD withdrawals will open at 13:00 ET on Apr 29, 2026.

Item Description Reference Time 5:00:00 PM ET daily, automatically observing EST/EDT transitions Time Window 1 minute before the reference time (e.g., if reference time is 17:00:00 ET, window is 16:59:00–16:59:59 ET) Data Points 1 index close price per second; 60 data points in total Settlement Price Arithmetic mean of per-second XAU-USDT index close prices within the window An arithmetic average across multiple data points — rather than a single price at one moment — is used to mitigate the impact

Instrument 2026-05-07 5:30PM to 2026-05-13 5:30PM ET 2026-06-05 5:30PM to 2026-06-11 5:30PM ET 2026-07-08 5:30PM to 2026-07-14 5:30PM ET XCUUSDT N6 N6 to U6 U6 CLUSDT M6 to N6 N6 to Q6 Q6 to U6 BZUSDT N6 to Q6 Q6 to U6 U6 to V6 NGUSDT M6 to N6 N6 to Q6 Q6 to U6 ZWUSDT N6 N6 to U6 U6Mark Price and Price Limits The rules for mark price and price limits are consistent with those of regular perpetual swaps.

Eastern Time (ET), automatically adjusting for U.S. daylight saving transitions (EST/EDT). Timezone conversion: Timezone During EST (Winter) During EDT (Summer) UTC+8 (Beijing/Hong Kong) Next day 06:00 Next day 05:00 UTC 22:00 21:00 Settlement Price: Arithmetic mean of the XAU-USDT index price over the 60-second window immediately preceding the settlement time, rounded to 4 decimal places (round-half-up).III.

Safety orders will be placed: 100 = (2^0 × 100) 200 = (2^1 × 100) 400 = (2^2 × 100), et cetera Price steps multiplier: Applied to the price step for placing the next safety order. It increases or decreases the price gap between safety orders. For example, with a price step = 1%, multiplier = 2.

Safety orders will be placed: 100 = (2^0 × 100) 200 = (2^1 × 100) 400 = (2^2 × 100), et cetera Price steps multiplier: Applied to the price step for placing the next safety order. It increases or decreases the price gap between safety orders. For example, with a price step = 1%, multiplier = 2.

Note that we may not make all of the Services available in all markets and jurisdictions, and may restrict or prohibit use of all or a portion of the Services from Restricted Locations, which at this time include Hong Kong (specifically regarding our derivatives-related Services), Belgium, Cuba, el Salvador, France and its overseas territories including Guadeloupe, French Guiana, Martinique, Mayotte, La Réunion, Saint Barthélemy, Saint-Martin, Saint-Pierre-et-Miquelon, French Southern and Antarctic

In addition, OKX may not make all of its services available in all markets and jurisdictions, and may restrict or prohibit use of all or a portion of the services from restricted locations, which at this time include Hong Kong (specifically regarding our derivatives-related services), Belgium, Cuba, France and its overseas territories including Guadeloupe, French Guiana, Martinique, Mayotte, La Réunion, Saint Barthélemy, Saint-Martin, Saint-Pierre-et-Miquelon, French Southern and Antarctic Lands,

In addition, OKX may not make all of its services available in all markets and jurisdictions, and may restrict or prohibit use of all or a portion of the services from restricted locations, which at this time include Hong Kong (specifically regarding our derivatives-related services), Belgium, Cuba, France and its overseas territories including Guadeloupe, French Guiana, Martinique, Mayotte, La Réunion, Saint Barthélemy, Saint-Martin, Saint-Pierre-et-Miquelon, French Southern and Antarctic Lands,

For reference, the underlying traditional markets operate on the following schedules: US Stock Market (all times ET) Pre-Market: 4:00 AM – 9:30 AM Regular Market: 9:30 AM – 4:00 PM Post-Market: 4:00 PM – 8:00 PM Overnight: 8:00 PM – 4:00 AM Closed on weekends and US market holidays. Korean Stock Market (all times KST) Regular Market: 9:00 AM – 3:20 PM Closed on weekends and Korean market holidays.

In addition, OKX may not make all of its services available in all markets and jurisdictions, and may restrict or prohibit use of all or a portion of the services from restricted locations, which at this time include Hong Kong (specifically regarding our derivatives-related services), Belgium, Cuba, France and its overseas territories including Guadeloupe, French Guiana, Martinique, Mayotte, La Réunion, Saint Barthélemy, Saint-Martin, Saint-Pierre-et-Miquelon, French Southern and Antarctic Lands,

In addition, OKX may not make all of its services available in all markets and jurisdictions, and may restrict or prohibit use of all or a portion of the services from restricted locations, which at this time include Hong Kong (specifically regarding our derivatives-related services), Belgium, Cuba, France and its overseas territories including Guadeloupe, French Guiana, Martinique, Mayotte, La Réunion, Saint Barthélemy, Saint-Martin, Saint-Pierre-et-Miquelon, French Southern and Antarctic Lands,

In addition, OKX may not make all of its services available in all markets and jurisdictions, and may restrict or prohibit use of all or a portion of the services from restricted locations, which at this time include Hong Kong (specifically regarding our derivatives-related services), Belgium, Cuba, France and its overseas territories including Guadeloupe, French Guiana, Martinique, Mayotte, La Réunion, Saint Barthélemy, Saint-Martin, Saint-Pierre-et-Miquelon, French Southern and Antarctic Lands,