In 2005 the Nippon Steel corporation made a plan to step up its capacity for recycling waste plastics into coke by 30%. Coke is a main resource in steel production. To manage the load they have invested 4 billion yen (about $38.2 million) to install equipment at Oita Mill and set up a second furnace at Kyushu facility.
In 2006 Nippon Steel and Mitsubishi Heavy Industries, Ltd. (MHI) jointly created a high tensile strength steel. The first application this steel was used for was the hulls of container ships. This steel allows the ships to be just as strong without the thick steel that it was requiring for them to grow in size. The smaller thickness allows the ships to attain a greater fuel-efficiency cutting down on the environmental load of the ships.
Nippon Steel announced a pilot project to process waste food into ethanol in 2006. They have tasked Kitakyushu City with collecting and sorting the food waste and Nishihara Co., a waste management company, with developing new technologies to implement the sorted collecting system. To minimize costs they will use waste heat from an existing incineration facility that had not been effectively utilized, and the residue left after ethanol recovery will be burned in this incinerator.