Tags Nui Phao – H.C.Starck Tungsten Chemicals Manufacturing LLC Masan buys tungsten facility Wednesday, Aug 15, 2018 Nui Phao Mining Company Ltd has acquired Germany-based H.C.Starck GmBH’s 49 per cent stake in Nui Phao – H.C.Starck Tungsten Chemicals Manufacturing LLC (NHTCM) for US$29.1 million.