State coal develops Yilinuosi and sell the office (OCDM) it is Yi Zhou government sector, the coal industry that is in charge of pair of Yi Zhou provides technology and finance support.

• 伊利诺斯州煤炭开发和销售办公室（OCDM）是伊州政府部门，负责对伊州的煤炭工业提供技术和财政支持。