Billionaire Profile
Martua Sitorus
Global Rank
#1118

Image: Public domain | via Wikimedia Commons

Martua Sitorus

CEO, Wilmar International
ID
Real-Time Net Worth
$3.6B
As of December 2025
Age
65
Source
Palm oil
Industry
manufacturing
Citizenship
ID

Biography

Martua Sitorus, born in 1960, is an Indonesian businessman and palm oil magnate. He is best known as the co-founder of Wilmar International, the world's largest palm oil producer. His wealth source stems primarily from the manufacturing industry, particularly the palm oil sector. His career began with trading fish and later expanded into the palm oil business, culminating in the establishment of Wilmar International with Kuok Khoon Hong in 1991. Martua's achievements include building Wilmar into a global agribusiness giant, with over 300 manufacturing plants and a vast distribution network. As of 2024, his net worth is estimated at $3.6 billion.

Wealth Over Time

In-Depth Profile

Early Life

Martua Sitorus, also known as Thio Seng Hap, was born in Pematang Siantar, North Sumatra, Indonesia, in 1960. Growing up in a family of small traders, he learned the value of hard work early on, even selling fish and shrimp to help his family. His early experiences instilled in him a strong work ethic and business acumen that would later define his career.

Rise to Success

After graduating from HKBP University Nomensen, Medan, with a degree in economics, Martua embarked on his entrepreneurial journey. He started a small business in Medan in the palm oil sector, marking the beginning of his ascent. In the 1980s, he forged a partnership with Kuok Khoon Hong, which led to the co-founding of Wilmar International in 1991. The company initially focused on palm oil trading, but quickly expanded into plantations and processing, evolving into a global agribusiness leader.

Key Business Strategies

Martua Sitorus's success can be attributed to several key strategies. He demonstrated a keen ability to identify opportunities and take calculated risks. He strategically expanded Wilmar's operations internationally, establishing a strong presence across Asia, Europe, Africa, the Middle East, and America. Furthermore, he formed strategic partnerships, such as with the Adani Group, creating Adani Wilmar, which focuses on distributing food products. Through his leadership, Wilmar International has grown into a vertically integrated agribusiness giant involved in various stages of the value chain, from cultivation to distribution.

Philanthropy

While specific details about Martua Sitorus’s direct philanthropic ventures are not readily available, his involvement in various business sectors, including healthcare with the Murni Teguh Hospital network, suggests a commitment to community development and well-being.

Career Milestones

1991

Co-founded Wilmar International

Co-founded Wilmar International with Kuok Khoon Hong, which became the world's largest palm oil producer.

2011

Co-founded Gama Corporation

Co-founded Gama Corporation, involved in property development, cement production, and other businesses.

2017

Stepped down from Wilmar International's board

Martua Sitorus stepped down from the board of directors of Wilmar International.

Philanthropy & Social Impact

Healthcare

Murni Teguh Hospital Network

N/A

Developed and invested in the Murni Teguh Hospital network in Medan.