Saudi Arabia: Tabuk Cement Company has announced the resignation of its director general Isa bin Baissy. He will work at the cement producer until 9 September 2013. His successor, Ali bin Mhmiaa Asmari, has worked with the company since 1996 as head of quarries, then director of the cement plant and deputy general manager.

US: Ash Grove Cement Company has announced that Stuart E Tomlinson has joined the company as its vice president of manufacturing for the Midwest region and will be based in the company's home office in Overland Park, Kansas. He join will Ash Grove on 15 August 2013 and replaces Edwin Pierce, who will retire on 31 December 2013.

"Stu is a cement industry veteran and he possesses more than three decades of experience," said Ash Grove's senior vice president of manufacturing. "He is an industry leader and will be an important part of the Ash Grove leadership team."

In his new role, Tomlinson will direct Ash Grove's cement operations in the Midwest region, which includes four cement manufacturing plants in Chanute (Kansas), Foreman (Arkansas), Louisville (Nebraska) and Midlothian (Texas).

India: JK Cement has appointed Shri Jagendra Swarup as an additional director on the board of the company until its next annual general meeting.

Ireland: Irish cement conglomerate Cement Roadstone Holdings (CRH) has announced that Albert Manifold will become group chief executive on 1 January 2014 following the retirement of current chief executive Myles Lee after 32 years with the group.

Manifold, a board member and CRH's CEO since January 2009, has held a variety of senior positions within the company, including managing director of the Europe Materials Division and group development director. Prior to joining CRH in 1998, he was CEO with a private equity group.

Commenting on the appointment, CRH's chairman, Nicky Hartery, said, "I am delighted to announce Albert's appointment as the next chief executive of CRH. This follows a comprehensive selection process led by the Board's Succession Committee."

"Albert will succeed Myles in the New Year, facilitating an orderly transition at chief executive level," continued Hartery. "Albert brings to his new role a deep knowledge of the industry and proven international executive experience."