Full English Name: SynFutures Abbreviation: F Official Website: https://www.synfutures.com/ Twitter: https://x.com/synfuturesdefi Features Details Underlying F/USDT index Settlement crypto USDT Face value 100 Price quotation 1 F value calculated in USDT equivalent Leverage 0.01-50x Funding rate clamp [Average premium index + clamp (Interest rate – Average premium index, 0.05%, -0.05%), 1.50%, -1.50%] For average premium index and interest rate calculations, refer to our product documentation Funding

F. Applicant is not a trust governed by the laws of a state or other jurisdiction in the United States, if a court within the United States is able to exercise primary supervision over the administration of the trust; G.

referencing the BZM6 contract and will roll over into BZN6 in April 2026: • 2026-04-07 5:30PM ET — 80% front-month (BZM6), 20% next-month (BZN6) • 2026-04-08 5:30PM ET — 60% front-month, 40% next-month • 2026-04-09 5:30PM ET — 40% front-month, 60% next-month • 2026-04-10 5:30PM ET — 20% front-month, 80% next-month • 2026-04-13 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,

Publicly obtain contract information: GET /api/futures/v3/instruments - - - - returning necessary strings with the response f. Set futures account mode: POST /api/futures/v3/accounts/margin_mode - - - - this API is incompatible g. Obtain information on futures accounts of all currency: GET /api/futures/v3/accounts - - - - returning necessary strings with the response 3. Involved Endpoint: WebsocketAPI a.

Instruments Trading pairs Tick size (before) Tick size (after) Perpetual BERA/USDT 0.001 0.0001 Perpetual BLUAI/USDT 0.00001 0.000001 Perpetual F/USDT 0.00001 0.000001 Perpetual FXS/USDT 0.001 0.0001 Spot AXS/EUR 0.001 0.0001 Spot BERA/USD 0.001 0.0001 Spot BERA/USDT 0.001 0.0001 Spot ELF/USD 0.0001 0.00001 Spot ELF/USDT 0.0001 0.00001 Spot FOXY/USDT 0.000001 0.0000001 Spot FXS/EUR 0.001 0.0001 Spot FXS/USDT 0.001 0.0001 Spot MINA/EUR 0.0001 0.00001 Spot SCR/USD 0.0001 0.00001 Spot SCR/USDT 0.0001

Quarterly: March 29, 2024 f. Bi-quarterly: June 28, 2024 2. Futures contract generation rules Futures contract types BTC/USDT, BTC/USD Non-BTC/USDT, non-BTC/USD Available contract durations 6 durations: Weekly / Bi-weekly Monthly / Bi-monthly Quarterly / Bi-quarterly (March, June, September, and December) 4 durations: Weekly / Bi-weekly Quarterly / Bi-quarterly (March, June, September, and December) Expiration date and time Weekly: every Friday at 8:00 am UTC.

. • 2026-04-08 5:30PM ET — 80% front-month (CLK6), 20% next-month (CLM6) • 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) XCU & CL designated contract month codes: Jan-F, Feb-G, Mar-H, Apr-J, May-K, Jun-M, Jul-N, Aug-Q, Sep-U, Oct-V, Nov-X, Dec-Z OKX team March 4, 2026

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the “Released Parties”) from and against any claim or cause of action arising out of participation in the Sweepstakes or receipt or use of any prize, including, but not limited to (a) unauthorized human intervention in the Sweepstakes; (b) technical errors related to computers, servers, providers, or telephone or network lines; (c) printing errors; (d) lost, late, postage-due, misdirected, or undeliverable mail; (e) errors in the administration of the Sweepstakes or the processing of posts; or (f)