Ho hlahisa Litšebeletso tsa Maintenance ea Asu, mofani oa maemo a holimo oa litharollo tsa tlhokomelo ea lisebelisoa tsa ASU (unit separation unit). Sehlopha sa rona se na le boiphihlelo bo pharalletseng le boiphihlelo ba ho sebeletsa le ho boloka lits'ebetso tsa ASU, ho netefatsa ts'ebetso e nepahetseng le bophelo bo bolelele bakeng sa bareki ba rona. Joaloka sebapali se ikemetseng indastering, re motlotlo ka ho fana ka lits'ebeletso tse felletseng tsa tlhokomelo tse etselitsoeng litlhoko tse ikhethileng tsa bareki ba rona. Ka ho sebelisana 'moho le Shanghai Lianfeng Gas Co., Ltd., moetsi ea ka sehloohong oa thepa ea ASU, mofani oa thepa le feme e thehiloeng China, re na le phihlello ea mahlale a morao-rao le lisebelisoa tsa ho fana ka tharollo ea maemo a holimo. Tšebelisano ea rona le Shanghai Lianfeng Gas Co., Ltd. e re nolofalletsa ho fana ka litsebi le tšehetso e ke keng ea lekanngoa ho basebetsi ba ASU, ho netefatsa hore lisebelisoa tsa bona li sebetsa ka katleho e phahameng. Ho Asu Maintenance Services, re ikemiselitse ho fana ka lits'ebeletso tse holimo tsa tlhokomelo le ho theha likamano tsa nako e telele le bareki ba rona. Re tšepe ho boloka lisebelisoa tsa hau tsa ASU li le maemong a nepahetseng, kahoo o ka tsepamisa maikutlo lits'ebetsong tsa hau tsa mantlha.