After being married in his homeland of Kinmen in 1934, Lim took his spouse back to Brunei, where he and his companions co-founded Chop Bee Seng. Lim sent money to anti-Japanese groups during the
Japanese occupation in 1942, which resulted in his detention and questioning by the Japanese. A Japanese businessman named Xiong Qi Ying saw Lim's potential and worked to negotiate his release, saving his life. Lim made a deal with the
military attaché to provide hand-rolled tobacco cigarettes and local dessert (
kuih muih) during the Japanese occupation in 1945. Lim moved his family to
Kampong Sinarubai for protection after the
Allied forces extensively attacked Brunei Town. In 1962, Lim Teck Hoo founded You Li Hong in Singapore, representing the renowned Yeo's brand of tinned food and drinks, which quickly gained popularity in Brunei. His commercial ventures expanded in 1970 when he established a
share trading limited company in Taiwan, allowing him to import a variety of goods, including raw materials, food products, artwork, steel, and cement. Lim also founded Bee Seng Shipping Limited Company in Hong Kong, specialising in the purchase and export of wholesale ready-made garments to international markets, and he served as chairman of the Overseas Chinese Trust Group, a subsidiary of the World Overseas Chinese Banking Corporation he co-founded in Taiwan. Although his family is no longer involved in the rubber trade, their former rubber estates have become valuable
real estate for development. After the bombing of Brunei Town, Lim entered the construction and building materials industry by establishing Soon Lee Brickworks, the first
clay brick manufacturer in Brunei, which remains operational today as Hup Soon Brickworks Ceramic. He played a key role in the reconstruction efforts by importing the first cargo of cement from Taiwan for Bandar Seri Begawan. Additionally, Lim founded Bee Seng Shipping in 1958, making it Brunei's first local shipping company, and actively participated in community activities organized by Tiong Hua. As the head of the Chinese community in Brunei, it was his responsibility to make sure they followed the rules and laws of the nation and made contributions to the advancement of the Sultanate. He was tasked with carrying out study and investigation into issues pertaining to these topics in order to provide advice to the Sultan. He established Lim Teck Hoo Holdings on 6 December 1994, and named his kids and grandkids as the board of directors. Since then, company has donated $80,000 a year to Chinese schools to support their growth. == Philanthropy ==