Eka Tjipta Widjaja (Indonesian pronunciation: ['eka 't?ipta wi'd?aja]; ca.
1921–2019, born in Quanzhou, China as Oei Ek-Tjhong (Chinese: ???; pinyin: Huáng Yìcong), was a Chinese-Indonesian business magnate who founded the Sinar Mas Group, one of the largest conglomerates in Indonesia.
Immigrated to Indonesia with his family when he was a child, he traded copra in mid 1950s, moved into palm oil industry soon after, started a paper factory in the 1970s, and then entered financial services in the 1980s.
At the time of his death, Sinar Mas has interests in paper, real estate, financial services, agribusiness, and telecom with holdings primarily in Indonesia, Singapore, Malaysia, and China, while Widjaja was listed by Forbes as the third richest person in Indonesia with a net worth of approximately US$8.6 Billion.