Main sugar company refers to the continuity of main sugar futures contract. According to the information of Straight Flush Finance Network, the main sugar company is the main sugar futures company, and the main company is the continuity of the main contract. In other words, the main contract is the mechanical connection of all the main contracts, forming a continuous contract, with the largest daily trading volume and positions, which will form a relatively continuous K-line chart, that is, the main contract.