兴中会
His relationship with Sun Yat-sen was complicated: Yeung was President (and Sun was Secretary) when his Furen Literary Society first merged with Sun's Revive China Society in 1895 (renamed as the Hong Kong chapter of the Hing Chong Hui). However Sun gradually became more powerful and edged Yeung out, resulting in Yeung resigning (as President) in 1899, to be succeeded by Sun Yat-sen.