Any thoughts on the substantial increase in cost of production...

Any thoughts on the substantial increase in cost of production and substantial reduction in ounces produced in June compared to April and May. Based on the disclosure for April and May production and the full quarter's results, the implied production in June was 3,728 ounces at a cash cost of $1,034 compared to 4,930 oz in May at a cash cost of $713. Any thoughts on why the substantial deterioration, particularly after the May comment that "strong performance is planned to continue"?

UML still looks interesting, but there is a big difference between 50,000-60,000 oz at a cash cost of c.$700/oz and 40,000-50,000 oz at a cash cost of over $1,000/oz.