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Netherlands: Silicon, a specialist company in refractory anchoring systems and rapid arc stud welding technology, has announced that six new members have joined its team, where they will be instrumental in leading the organisation to drive worldwide business growth.

Marc Beers, who has been appointed as sales manager, has 15 years of experience at different sales management positions. "I look forward to working with such an awesome team and we are excited to work together on providing the best products and services to our customers." said Beers.

US: The PCA board of directors has elected Lafarge North America's CEO John Stull as its 2014 - 15 chairman. He succeeds American Cement Co's Cary Cohrs.

"This is an important time for the PCA to champion resilient construction and advocate for critical national infrastructure funding, both of which will ensure the vitality of the cement industry," said Stull, who in addition to being a long-standing director has co-chaired the PCA Manufacturing Technical Committee.

Over a 22-year Lafarge Group career, Stull has progressed through vice president and regional president roles for US, Latin American and Sub-Saharan African businesses. He holds a chemical engineering degree from the University of Akron and is a Harvard Business School executive management programme graduate.

Switzerland: Dominique Drouet, CEO of Holcim Morocco, has been appointed Area Manager for Africa Middle East and member of Senior Management of Holcim with effect from 1 January 2015. He will assume this responsibility in addition to his current role. Drouet will succeed Javier de Benito, who has decided to leave Holcim effective from 1 January 2015, to take up a new challenge outside the group.

Drouet joined Holcim in 1994 as CEO of Holcim Outre Mer and was appointed CEO of Holcim Lebanon in 1999. He took over his current role in 2004. Before working for Holcim, Dominique occupied various engineering, commercial and managerial roles in the construction materials industry. He holds a degree in Engineering from the Ecole des Travaux Publics in Paris and a Bachelor's degree in Mathematics from the University of Toulouse.

Sri Lanka: W Christopher Fernando has been appointed as an executive director to the board of Tokyo Cement Company (Lanka) with effect from 30 October 2014.

Fernando was appointed as Group General Manager of the company in 1991. He is also a director of Fuji Cement Company (Lanka), Tokyo Super Cement Company (Lanka), Tokyo Cement Colombo Terminal, Tokyo Cement Power (Lanka) and Tokyo Eastern Cement Company. He holds degrees in economics, is a Fellow Member of the Institute of Chartered Management Accountants (FCMA), Fellow Member of the Institute of Chartered Accountants (FCA) and an attorney-at-law.

China: The board of directors of Anhui Conch have announced that Zhu Yuming has resigned as a supervisor of the company due to other work commitments. Zhu's resignation will be effective upon the appointment of a new supervisor to fill the vacancy. Anhui Conch have thanked Zhu for his 'invaluable' contributions to the company.