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Sandvik Appoints Raphael Carmona

PM060120 Raphael CarmonaRaphael Carmona has been appointed business line manager, stationary crushing and screening, North America, for Sandvik Mining and Rock Technology. He will start in this role, responsible for Canada and the United States, on Aug. 3. He will be based in the Atlanta area, where he will relocate by early 2021.

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Wajsgras Joins Martin Marietta Board

PM051820 WajsgrasMartin Marietta Materials Inc. announced that a new independent director was elected to its board of directors at its Annual Meeting of Shareholders. David C. Wajsgras served as president of the Intelligence, Information and Services business of the former Raytheon Company, now part of Raytheon Technologies Corp. Previously, he served as Raytheon’s senior vice president and chief financial officer. 

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New Enterprise CFO Stone to Retire

PM051220 StoneNew Enterprise Stone & Lime Co. Inc. (NESL) announced the planned May 31, 2020, retirement of Al Stone, the company’s chief financial officer. The company is conducting a formal search for his replacement, which includes internal and external candidates. 

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Leftwich Named President and CEO of TACA

PM051420 LeftwichThe Texas Aggregates & Concrete Association (TACA) announced that Josh Leftwich is joining the association as its new president and chief executive officer. Leftwich comes to TACA with more than 20 years of experience in the mining and energy sectors, bringing an extensive and diverse range of knowledge in regulatory policy, legislative engagement, environmental permitting, business planning, risk management and stakeholder engagement. 

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Guenthardt Appointed President and CEO of Eriez

PM041520 GuenthardtEriez Chairman Richard Merwin announced the appointment of Lukas Guenthardt to the position of president and CEO. Eriez selected Guenthardt to fill this leadership role when Timothy Shuttleworth retired after serving as the company’s president and CEO since 2004.

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