Apple has promoted Jeff Williams, the company’s former procurement chief, as its new chief operating officer.
Williams joined Apple in 1998 as head of worldwide procurement from IBM. He become the firm’s vice president of operations in 2004, and in 2010 took responsibility for Apple’s supply chain service and support. He was also in charge of the company's social responsibility programmes.
Apple CEO Tim Cook said: “Jeff is hands-down the best operations executive I’ve ever worked with.”
The company said Williams played a key role in Apple’s entry into the mobile phone market with the iPhone, and in 2013 he led the company’s Apple Watch project.
Tim Cook was previously the firm’s COO before taking over from Steve Jobs as CEO in August 2011.