Commodity futures; In fact, it refers to futures contracts. Only when chemical raw materials become the reserve price; Only after listing on the exchange.

At present, only some chemical raw materials have become futures contracts.

Such as: Dalian Commodity Exchange, Linear Low Density Polyethylene (LLDPE).

Zhengzhou Commodity Exchange; PTA is pure terephthalic acid.

Answers to supplementary questions:

It should be a spot transaction.