Intel plans to invest $20 billion in an effort to expand its semiconductor manufacturing operations by building two new fabrication facilities at its Ocotillo Campus in Chandler, according to a news release from the city.

“Intel’s continued expansion of its largest, most advanced manufacturing site in the world exemplifies the presence of innovation in Chandler,” Chandler Mayor Kevin Hartke said in a news release. “A talented workforce, excellent quality of life, proactive planning and decades of infrastructure investments enable global innovators like Intel to excel in our community.”

The expansion marks the largest private investment of any kind in Arizona history, according to the release.

“Intel is proud to, once again, expand our manufacturing capabilities in Arizona by constructing two new fabs at our Ocotillo campus," said Jim Evers, vice president and factory manager of Intel, in the release. "We are proud to have a 40-year legacy of innovating in Arizona and are grateful to the City of Chandler for creating a business environment that encourages these types of investments.”

Intel said its expansion will add more than 3,000 high-tech, high-wage jobs and support an additional 15,000 jobs indirectly. Another 3,000 construction jobs will be employed while the fabrication facilities are being built. Intel said construction is slated to begin later this year, according to the news release.

Micah Miranda, Chandler’s economic development director, said that an investment of this magnitude has significant supply chain implications for local businesses as Intel annually spends about $1.5 billion with Chandler-based suppliers and another $3 billion with other Arizona-based suppliers, according to the release.

“Existing and prospective Intel suppliers can connect with our economic development team for assistance with office and industrial space site selection in Chandler,” Miranda said.

Intel’s presence in Chandler began in 1980 with its first production facility and it has grown to become the City’s largest employer. Intel celebrated 40 years in Chandler last year, and it opened Fab 42, a $7 billion investment that created the most advanced manufacturing facility in the world, according to the news release.