Preface Hong Kong HQ | Causeway Bay
18/F, Tower 535, 535 Jaffe Road, Causeway Bay, HK
Preface Hong Kong | Hung Hom
38 Hung Luen Rd, Hung Hom, HK
Preface Tokyo
1-24-3, Minami Aoyama, Minato-ku, Tokyo, 13 107-0062, JP
Preface London
Aldwych House, 71-91 Aldwych, London WC2B 4HN