Howmet Aerospace Inc., Thermatech Search | Advanced Search | New Members | Coupons and Discounts | All Categories Industrial & Manufacturing >> Primary Metal Manufacturing Howmet Aerospace Inc., Thermatech 555 Benston RoadWhitehall, MI 49461 | map | directions Ms. Amy Heisser 231-894-7328 | fax: 231-894-7385 Visit Site Member Since: 2010 If you would like to see your business here, contact us today to get listed!