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US: Doug Black, currently chief executive of CRH's Americas Materials Division, has been appointed to the newly created position of president and chief operating officer of Oldcastle Inc, the holding company for CRH's operations in the Americas. Black will report to Mark Towe, chief executive officer of Oldcastle. Aged 47, Black joined Oldcastle in 1995 and has held a series of key leadership positions at Oldcastle and in the Precast, Architectural Products (APG) and Materials operations.

CRH, the international building materials group, has announced a number of changes within its management team in the United States, effective from 20 February 2012. Commenting on these changes, Myles Lee, CRH chief executive said, "These appointments and subsequent follow-on changes strengthen our organisational structure and enhance our ability to execute our strategies and achieve long-term performance and growth."

Spain: The Spanish cement producer Cementos Portland Valderrivas has announced that it will appoint Juan Bejar Ochoa as its executive chairman. Bejar will replace Dieter Kiefer, who will leave the company after four years at the helm. Juan Bejar joined the company recently in January 2012.

The changes in Cementos Portland's top management come at a tough moment for the firm given the slump in cement sales on the domestic market, as well as the problems at its production sites in Tunisia.

Jordan: Toufic Ahmed Tabbara has been appointed as the CEO of Lafarge for Jordan. Tabbara will assume this new role in February 2012 and will be responsible for both cement and concrete. Before this new appointment, Tabbara worked at several roles across the Lafarge group in various countries.

Tabbara started his career as a financial analyst with Republic National Bank of New York in London. In 1998, he joined Lafarge as Manager of Strategy and Development of Gypsum Activity in Reston, US. He then worked at several managerial roles in Lafarge Group in US, Canada and Egypt.

Tabbara holds a BA degree in Business Administration from the American University of Beirut, Lebanon and an MBA degree from American Graduate School of International Management.

Romania: The Romanian unit of Lafarge has appointed Sonia Artinian as its new country CEO. She is in charge of the French group's cement, aggregates and concrete business in Romania. Artinian replaces Philippe Questiaux, who had managed Lafarge's cement activity in Romania since 2002.

Russia: Vladimir Petrov has been appointed as General Director of Pikalevskiy Cement, a part of Russia's Eurocement Group.

Ukraine: The Balakleya-based Eurocement-Ukraine company dismissed its director general Demis Halchev on 31 January 2011 after a tenure of around three years in the post. According to a report, the position is now vacant.

Malaysia: Lafarge Malayan has appointed Bradley Peter Mulroney as its president and chief executive officer and Malaysian Chen Theng Aik as its executive director.

Mulroney, aged 49, is a British national. He holds a Bachelor of Arts from the University of London and he initially started his career with Redland plc, where he rose to the rank of a general manager. Redland was acquired by Lafarge SA in 1996.

Aik, aged 45 is a Malaysian who was previously the senior vice-president, finance and chief financial officer of Lafarge Malayan.