Tsubakimoto Chain (6371.TYO), a Toyota (TM.NYSE, 7203.TYO) supplier, expects its China auto parts sales to more than double in four years on rising orders from carmakers including Volkswagen (VOW.FRA) and General Motors (GM.NYSE), Bloomberg reported. Toru Fujiwara, managing executive officer, said in a Monday interview that the company expects sales to jump to more than US$117 million by March 2018 as carmakers diversify supply chains, vying to dominate the world’s biggest auto market. The maker of transmission chains and gears plans to build a new plant in China as early as this year, he said.