Bridgestone Americas, Inc. said today it will it invest $1.2 billion and create 850 jobs as part of an twofold expansion of its tire-making operations in Aiken County.

The new 1.5 million square-foot building, which will produce off-road radial tires in Sage Mill Industrial Park, will be coupled with a 474,000-square-foot expansion to an existing Bridgestone plant that makes tires for passenger vehicles and light trucks.

The Japanese-owned company previously announced a 266,000-square-foot addition to the Aiken plant in July.

Bridgestone said the new off-road radial factory “is part of the company’s global sourcing strategy and will strengthen the ability of the global Bridgestone Group to cement its leadership position in this important market segment.”

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“Today’s announcement represents the largest initial capital investment by a company in our state’s history, and we celebrate the more than 850 new jobs. This is a continuation of the good work we are doing to partner with companies. South Carolina has a great reason to smile today,” said Gov. Nikki Haley.

The state Department of Commerce provided $15.5 million in grants to the company for infrastructure and site preparation, including about $6 million that was provided to improve public roads adjacent to the facility. The Coordinating Council also approved the project for job development credits.