Japan's Mitsui Chemicals and Taiyo Oil released that they started considering collaboration to expand supply for chemically recycled products by maximumly using pyrolysis oil produced from plastic wastes.

Mitsui Chemicals started producing and selling chemically recycled derivatives that were made from bio-naphtha at its 500,000mt-per-year ethylene unit at the Osaka plant in December 2021. The company additionally started injecting pyrolysis oil into the unit in March 2024. This pyrolysis oil is supplied by a recycle business company CFP that locates in Hiroshima prefecture.

Meanwhile, Taiyo Oil is constructing a processing facility of some feedstocks including pyrolysis oil at the Shikoku refinery. This new facility is scheduled to be completed this year. In this collaboration, Taiyo Oil will receive heavy fraction of pyrolysis oil from CFP and will process it into several products such as naphtha and propylene. Thus, the oil firm will supply them to Mitsui Chemicals. However, production capacity of naphtha at Taiyo Oil's new facility is currently unclear.