COLUMBUS: Gov. John Kasich said Monday that a major South Korean industrial plant builder has joined an effort to build a multibillion-dollar petrochemical plant in eastern Ohio to take advantage of the region’s oil-and-gas boom.

Kasich, a Republican, called the partnership between Seoul-based Daelim Industrial and Thailand’s PTT Global Chemical a “game changer” for the proposed plant, which has idled in the planning stages for years.

“It’s great to see these two world-class companies coming together to develop an exciting 21st Century industry that would dramatically transform Ohio,” Kasich said in a statement.

Daelim, according to its website, is South Korea’s oldest construction company and an expert in petrochemical technology.

The U.S. subsidiary of PTT has been working for several years with officials from JobsOhio, Ohio’s privatized economic development office, on a proposal to build the plant on the site of a former FirstEnergy coal-fired power plant along the Ohio River in Belmont County.