Mitsui Chemicals to buy US dental materials maker for $900m

Ultradent is Japan company's largest acquisition yet as it expands into healthcare

Mitsui Chemicals plans to broaden its footprint in the substantial U.S. market through the acquisition. (Photo by Nozomi Okubo)

TOKYO -- Mitsui Chemicals will purchase major U.S.-based dental materials manufacturer Ultradent Products for roughly $900 million under plans announced Friday, marking the Japanese chemical producer's biggest acquisition to dae.