Transformer oil refiner Hydrodec expects to conclude the sale of its Australian business before its annual general meeting on June 20, according to its filing for 2018 results. In September 2018, the company said it would sell its transformer oil rerefining plant in Wagga, New South Wales, or relocate it to another facility in the United States. SK Lubricants Co.signed a deal to supply base oil to state-owned PetroChina.