1. transaction fee: based on unilateral 10 yuan/hand, bilateral 4 yuan/ton (including exchange fee). 2. The charging standard for the designated delivery warehouse of Hujiao is: storage fee: 15 yuan/ton storage fee/ton/day; ×30=24 yuan/ton/month delivery fee: 15 yuan/ton transit fee: 10 yuan/ton others (handling fee, packaging fee, sorting fee, agency fee, expedited fee, etc. ): 50 yuan/ton 3. Delivery fee: 8 yuan/ton (including exchange fee) 4. Quality inspection fee: 5 tons. Freight discount standard for warehouses delivered in different places and Shanghai warehouses at the benchmark delivery place: Hainan: 2 10 yuan/ton; Yunnan: 280 yuan/ton; 6. VAT: imported rubber:17%; Domestic rubber:13%; 7. Interest on funds: the sum of various expenses with a monthly interest rate of 5‰ (annual interest rate of 6‰). Fixed fee = transaction fee+storage fee+storage fee+transfer fees+other fees+delivery fee+quality inspection fee = 1 12 yuan/ton variable fee = storage fee+capital interest =24+X5‰ value-added tax: 13% or more of the contract price difference is the whole content of natural rubber futures delivery fee.