Adjustments of tiered maintenance margin ratio (1) Adjusted tiers of BCHUSDT perpetual contract: Tier Min. amount (Cont) Max. amount (Cont) Maintenance margin ratio Min. initial margin ratio Max. leverage 1 0 400 0.80% 1.30% 75.00 2 401 4,000 1.00% 2.00% 50 3 4,001 12,000 1.50% 2.50% 40 4 12,001 20,000 2.00% 3.00% 33.33 5 20,001 28,000 2.50% 3.50% 28.57 6 Increase by 8,000 conts from the previous tier Increase by 8,000 conts from the previous tier Increase by 0.5 % from the previous tier Increase

Adjustments: (1) Adjusted tiers of BCHUSDT perpetual contract: Tier Min. amount (Cont) Max. amount (Cont) Maintenance margin ratio Min. initial margin ratio Max. leverage 1 0 400 3.00% 4.00% 25.00 2 401 4,000 3.50% 4.50% 22.22 3 4,001 12,000 4.00% 5.00% 20.00 4 12,001 20,000 4.50% 5.50% 18.18 5 20,001 28,000 5.00% 6.00% 16.67 6 Increase by 8,000 conts from the previous tier Increase by 8,000 conts from the previous tier Increase by 0.5 % from the previous tier Increase by 0.5 % from the previous

2.00% 5.00% 20.00 4 5,001 10,000 2.50% 5.50% 18.18 5 10,001 15,000 3.00% 6.00% 16.67 6 Increase by 5,000 conts from the previous tier Increase by 5,000 conts from the previous tier Increase by 0.5% from the previous tier Increase by 0.5% from the previous tier Max. leverage of the tier (7) Adjusted tiers of MKRUSDT perpetual contract: Tier Min. amount (Cont) Max. amount (Cont) Maintenance margin ratio Min. initial margin ratio Max. leverage 1 0 200 1.00% 1.30% 75.00 2 201 400 1.50% 2.00% 50.00 3 401

ratio Min. initial margin ratio Max. leverage 1 0 300 0.80% 1.30% 75 2 301 1,000 1.00% 2.00% 50 3 1,001 4,000 1.50% 3.00% 33.33 4 Increase by 4,000 conts from the previous tier Increase by 4,000 conts from the previous tier Increase by 0.5% from the previous tier Increase by 0.5% from the previous tier Max. leverage of the tier LTCUSDT futures Tier Min. amount (Cont) Max. amount (Cont) Maintenance margin ratio Min. initial margin ratio Max. leverage 1 0 100 0.80% 1.30% 75 2 101 400 1.00% 2.00% 50 3 401