AFSC Operations Ltd

Anglo-Eastern Ship Management Ltd (HK)

ATAL Engineering Ltd

Chevalier (Construction ) Co., Ltd

Drainage Services Department, HKSAR

ExxonMobil Hong Kong Limted

Fleet Management Ltd

Four Seasons Hotel

Green Island Cement (Holdings) Limited

Hoi Tung Marine Machinery Suppliers Limited

Hong Kong Air Cargo Terminal Ltd (HACTL)

Hong Kong Aircraft Engineering Company Ltd (HAECO)

Hong Kong Convention and Exhibition Centre (HKCEC)

HongKong Post

ID Ship Management Limited

ISS EastPoint Property Management Limited

Jardine Engineering Corporation

Jebsen Industrial Technology Company Limited 

Ocean Park Corporation

Peninsular Hotel

REC Engineering Company Limited

Sinotrans Ship Management Ltd

SUEZ NWS R&R (Hong Kong) Limited

Tai Chong Cheang Steamship Co ( H.K.) Ltd

The Hongkong Electric Co., Ltd.

Univan Ship Management Limited

Urban Property Management Ltd.

Wah Kwong Ship Management (HK) Limited

Wallem Ship Management Limited

Water Supplies Department, HKSAR

 Sita Waste Services Limited