state one policy they have on ethnic minority groups?
They consider all minorities to be members of the Chinese nation.
Kuomintang
considers all minorities to be members of the Chinese nation. 
from where do taiwanese indigenous peoples originated? Taiwan what are its ethnic groups? Philippines, Malaysia, Indonesia etc can you mention any of its surname? Han and Pan is there any day celebrated after their name? UNANSWERABLE by whom were they ruled during 1945 to 87? Chinese Nationalist Party (Kuomintang, or KMT) who is its founder? Song Jiaoren and Sun Yat-sen when? 1919 did they sponsor any organization? Yes,  Islamic organizations, The Muslim Chengda school and Yuehua publication and the Chinese Muslim Association.
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Kuomintang [SEP] Policy on ethnic minorities
KMT considers all minorities to be members of the Chinese nation. Former KMT leader Chiang Kai-shek considered all the minority peoples of China, including the Hui, as descendants of Yellow Emperor, the Yellow Emperor and semi mythical founder of the Chinese nation. Chiang considered all the minorities to belong to the Chinese Nation Zhonghua Minzu and he introduced this into KMT ideology, which was propagated into the educational system of the Republic of China, and the Constitution of the ROC considered Chiang's ideology to be true. In Taiwan, the President performs a ritual honoring the Yellow Emperor, while facing west, in the direction of the Chinese mainland.