Yang Gong San Yuen Yuen Gua Feng Shui System is the original, ancient system that has been used since the Tang dynasty, Liu Jiangdong is the main and important Grand Feng Shui Master, and the 24 Mountain lineage is passed down from him. Today Master Yu Yong Hai is the 38th Generation Holder. Master Yu Yong Hai learnt from Grand Master Liu Guo Sheng.

My Master is Edgar Lok Tin Yung 39th Generation Holder. His Master is Yu Yong Hai. You can find more details about Master Edgar Lok Tin Yung business on his website.