Chinese and Hong Kong companies facing a slowdown in China's economy are establishing family office businesses to create new revenue streams as wealthy Chinese seek to protect their assets, according to a Nikkei Asia report. Centaline Group, one of Hong Kong's largest real estate brokers, has ventured into wealth management services. Mainlanders of means are eager to keep their money safe, said Centaline founder Shih Wing-ching. The prolonged property crisis and increased tax scrutiny have prompted affluent individuals to seek asset protection and tax optimisation. Local tax bureaus have been contacting wealthy Chinese to report offshore capital gains, leading to more inquiries about taxation, sources said. While companies aim to capitalise on this demand, some warn that China's declining population may eventually constrain wealth creation.