• MDI announces retirement of Russell Welty and appointment of new automotive division manager

    Karen McMullen has been named MDI's next automotive division manager.
    July 1, 2025

    Mercantile Development, Inc. (MDI) announced the retirement of Automotive Division Manager Russell Welty. Welty first joined the company in 2020, providing technical insights and a customer-focused approach that helped fuel MDI's success.

    MDI also announced that Karen McMullen would be succeeding Welty as Automotive Division Manager. She brings in more than 20 years of experience in sales and marketing, most recently serving as Global Manager of the Automotive Division at Dynabrade. Her new role positions her as MDI's dedicated Wiper Specialist for the North American automotive industry.

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