Solstice Advanced Materials Inc.’s $200 million expansion at its Spokane Valley plant is on schedule after breaking ground in December. Building construction is set for completion in the fourth quarter of 2027, says Amy Schneiderman, a representative for Solstice.

As planned, the expansion, dubbed Project Copperfield, will add a new 111,000-square-foot manufacturing building, a 3,300-square-foot chemical storage building, and 136 additional parking spaces to the company's existing 196,000-square-foot facility, located at 15128 E. Euclid, in Spokane Valley.

The Morris Plains, New Jersey-based materials company manufactures sputtering targets, compound semiconductors, and other products that support critical industries and applications, including refrigerants, semiconductor manufacturing, data center cooling, nuclear power, protective fibers, health care packaging, and more, according to a press release from Solstice.

The new plant upgrades will modernize the company's electronic materials production facility and double the current production capacity for sputtering targets at the site. Growing demand for semiconductors generated by the recent artificial intelligence boom prompted the investment.

Spokane-based Garco Construction Inc. is the contractor on the project. Garco also will select the architect, says Schneiderman.

Other facility upgrades include automated production systems, laser-vision quality inspections, and real-time monitoring. Those updates will occur after the building is complete. Construction workers are currently finishing up ground work at the property and are pouring foundations and footings for the building, Schneiderman says.

The existing Solstice facility, located north of Interstate 90, occupies the north half of a 20-acre parcel, according to property information from Spokane County.

Of the $200 million budgeted for the expansion, Solstice expects to spend $80 million on materials from Washington-based suppliers, she adds.

Last year, Solstice Advanced Materials completed a spin-off from Honeywell Electronic Materials Inc., a multinational manufacturing corporation based in Charlotte, North Carolina, the Journal previously reported. Project Copperfield was announced by Honeywell before the split was completed.

The Spokane Valley plant has 300 workers and the company expects to hire 80 additional workers to staff the plant after construction wraps up. Solstice Advanced Materials employs 4,000 people across 24 manufacturing sites and four research and development centers, including its Spokane Valley location, according to a press release about the expansion.

—Ethan Pack