Syarikat yang berdaftar di Singapura: 18 Disember 1962

2 syarikat

NING KWONG OPTICAL COMPANY (PRIVATE) LIMITED Kod pendaftaran: 196200236G Alamat rasmi: 51 CHIN SWEE ROAD, #02-95/99, 160051, Singapore

WAN TAI AND COMPANY (PRIVATE) LIMITED Kod pendaftaran: 196200237W Alamat rasmi: 25 CHANGI SOUTH AVENUE 2, OCH INDUSTRIAL BUILDING, 486594, Singapore