beijing:
tel: (8610) 59960028
fax: (8610) 59960386
email: [email protected]
hong kong:
tel: (852) 28242638
fax: (852) 28243669
sinopec america, inc.
tel: (713)-544-8888转406
email: [email protected]
address: 3050 post oak blvd, suite 800, houston