His tin-mining business suddenly took an upswing, and Loke then went on to acquire and own many more tin mines, and rubber and coconut plantations in Perak. He also ventured into supplying provisions to British troops during the Perak War, running a pawnbroking business, and even obtained monopoly for liquor sales, gambling licences and other privileges from the colonial government.
Loke's tin-mining company experienced a sudden surge in success, leading him to acquire and own numerous additional mines, as well as plantations in Perak. He also supplied provisions to British troops during the Perak War, ran a pawnshop, and secured exclusive privileges for liquor sales, gambling licenses, and other benefits from the colonial government.