Ng Wah International Development Limited - Trades in aromatic and industrial chemicals, including menthol crystals, peppermint oil, caustic soda, rosin, and turpentine. - http://www.ngwah.com/
Lee Kee Group Limited - Non-ferrous metal trader. Specialises in zinc, aluminium, tin-lead alloy and chemical materials. - http://www.leekeegroup.com/
Luen Shing Company - Specialises in auxiliary chemicals and dyestuff for fur and leather. - http://www.luenshingfurdye.com/