The Chinese is the third largest ethnic group in the province, forming 14.3% of the total population. Chinese traders have frequented the region since at least the 13th century, during the Yuan dynasty. The mention of "Longyamen" (simplified Chinese: 龙牙门; traditional Chinese: 龍牙門; pinyin: lóngyámén")", which means "Dragon's Tooth Strait" in Chinese, first appeared in the "Yüan shih" in 1320. In 1325, "Longyamen" sent a mission to China with a memorial and tribute. The nearby island of Bintan had sent an earlier mission in 1323. Thus "Longyamen" was already known to the Yuan court before 1320. Another place named "Longyamen" appears in 1225 in Zhao Rugua’s text. It has been argued that this place was Lingga, south of Riau, and that the 14th-century "Longyamen" was in that vicinity. It is more probable, however, that the Song text referred to a different place from the Yuan texts. There is overwhelming evidence to suggest that "Longyamen" was Singapore in the 14th and 15th centuries. Presently, the Riau Island is one of the province in Indonesia that has the largest number of Chinese population. The capital of the Riau Islands, Tanjung Pinang, is one of the city that has the largest percentage of ethnic Chinese population among other cities in Indonesia, amounting to 58.86% of the total population. Until now the majority of Tanjung Pinang's economy is driven by the ethnic Chinese community. They not only controlled the small or medium-scale economy, but also developed into large-scale businesses such as shipbuilding, housing, restaurants and hospitality. In addition to moving in the economy, there are some who become politicians, people's representatives, political figures and even civil servants. Most of the Chinese in Tanjung Pinang, as well as the Riau Islands in a whole trace their ancestors from Fujian, hence most of them are of Hokkien origin, while significant population of Teochew and Cantonese origins also exist in the Riau Islands.