HONG PONG LONG COMPANY LIMITED Registered No. 0525491000049 Province Lampang Registration date September 6, 1948
PHANASIDDHI CO., LTD. Registered No. 0525490000037 Province Lampang Registration date August 30, 1947
THE LAMPANG PROVINCIAL TRADING CO., LTD. Registered No. 0105483000179 Province Lampang Registration date September 9, 1940