Each county in Michigan is impacted by MTU, with the greatest impact in. Houghton … Power Systems Laboratories (APS LABS) and Keweenaw Research Center in … chemical manufacturing” and “semiconductor and electronic component manu- … Marquette. $13.7. $15.4. 118. 7. Washtenaw. $13.6. $15.2. 119. 8. Ottawa.

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