The company, which owns the Cullinan mine that has produced the two largest diamonds in the British Crown Jewels, said output and revenue will be lower than market expectations.
Shareholders of Brazil's Vale SA approved a share conversion plan on Tuesday in a move that should boost transparency, give equal votes to all shares and limit government meddling in the world's No. 1 iron ore producer.
The study found Canada's oil sands had a substantial impact on Quebec's economy in terms of employment, gross domestic product (GDP) and tax revenue, in a 12-month period between 2014 and 2015.