Jason Chang Net Worth

Jason Chang has an estimated net worth of $21.5 billion, according to Forbes Real-Time Billionaires, Jason Chang profile (figures as of October 20, 2026). That is up from $2.5 billion in 2019.

Jason Chang is a business executive known for leading ASE Technology Holding. He is the chairman of the Taiwan company, which works in semiconductor assembly and testing. That made him a major figure in manufacturing tied to the chip industry. Forbes classifies him as self-made and places him in the semiconductors category. He is also one of the main investors in Sino Horizon, a commercial real estate developer, alongside his brother Richard.

His wealth is tied mainly to ASE, a company described as a world-leading provider of semiconductor assembly and testing services. Chang also gained industry recognition in 2015, when he received a SEMI Award for work connected to the development and commercialization of copper wire in the IC assembly process. Later, he received honorary doctorates in 2018 and 2022. Forbes put his net worth at $21.5 billion on its real-time billionaires tracker as of October 20, 2026.

How Jason Chang built his fortune

Most of Jason Chang's money comes from semiconductors. He is the chairman of ASE Technology Holding, and the company is known for semiconductor assembly and testing services. That business sits inside manufacturing, the industry Forbes assigns to him. Because chip companies need packaging and testing before products are ready for broader use, ASE's role gives Chang a direct connection to a key part of the semiconductor supply chain.

Chang also has another business interest beyond chips. Along with his brother Richard, he is one of the main investors in Sino Horizon, a commercial real estate developer. That means his wealth is not tied to just one asset. Even so, the clearest driver is ASE, since his Forbes profile centers on semiconductors and identifies him as a self-made billionaire whose business career is rooted in that field.

How Forbes' estimate changed

Forbes has shown a big rise in its estimate over time. On the World's Billionaires list, Chang was at $2.5 billion in 2019, stayed at that level in 2020, and then moved up to $5 billion in 2021. After that, Forbes estimated $4.6 billion in 2022 and $4.7 billion in 2023. By 2024, Forbes valued his fortune at $6.6 billion, showing a much larger business footprint than a few years earlier.

The biggest jump came later. Forbes placed him at $14.2 billion on the 2026 World's Billionaires list, and its real-time tracker reached $21.5 billion in October 2026. The available details point mainly to his long-running stake in ASE Technology Holding, a global semiconductor assembly and testing company, with added support from his investment in Sino Horizon. In 2024, Forbes ranked him at 417 on its annual billionaires list.