The Sincere Company Ltd.1917

Entries in the 

THE DIRECTORY & CHRONICLE FOR CHINA, JAPAN, COREA, INDO-CHINA, STRAITS SETTLEMENTS, MALAY STATES, SIAM, NETHERLANDS INDIA, BORNEO, THE PHILIPPINES, &c. WITH WHICH ARE INCORPORATED "THE CHINA DIRECTORY" AND "THE HONGKONG DIRECTORY AND HONG LIST FOR THE FAR EAST" 

until 1916 give the (old) address 111 Connaught Road. In the 1917 edition it is the new one.