(ShareCast News) - KAZ Minerals announced the completion of construction and the commencement of commissioning works at the Bozshakol clay plant on Thursday.The FTSE 250 firm said the clay plant has an annual processing capacity of five million tonnes and is expected to commence production of saleable copper concentrate in 2016.Completion of the plant brings the total ore processing capacity at Bozshakol to 30 million tonnes per annum, including the main 25 million tonne sulphide concentrator which began operations at the start of the year.The ramp up of the main sulphide concentrator is progressing in-line with expectations and the 2016 production guidance for Bozshakol remains unchanged, the board added."I am very pleased to report that the Bozshakol clay plant has begun commissioning," said KAZ chief executive Oleg Novachuk."Construction activities at Bozshakol are largely complete and we are now focused on ramping up copper output from this 100 kt per annum, long-life, low-cost, open pit mine."