The Mainland Affairs Council (MAC) said Thursday that it will lodge a protest with China against the practice by customs offices in southern China that requires imports from Taiwan to be labeled as coming from 'Taipei, China.' MAC Vice Chairman Liu Te-hsun said the protest will be delivered to the Chinese authorities via the Taipei-based Straits Exchange Foundation -- the intermediary body authorized to deal with China exchanges in the absence of official ties. According to media reports, Taiwanese goods shipped to southern parts of China that are not labeled either 'Taiwan, China' or 'Taipei, China,' have been refused entry. Liu said that according to an investigation by the Ministry of Economic Affairs, there has been only a limited number of such cases in the past. He said that under existing regulations, all Taiwanese exports to China should be labeled as coming from the 'Republic of China, ' 'Taiwan, ROC' or 'Taiwan. ' Liu said the government will ask the Chinese authorities to address the issue in order to avoid the country's sovereignty from being compromised. 