Aim-listed BlueRock Diamonds recorded good progress on a number of fronts during the six months ended June 30, chairperson Mike Houston says, despite a challenging period and delays in the expansion project at its Kareevlei mine, in the Kimberley region of South Africa. The company announced a significant increase to its mineral resource, is now on the verge of fully commissioning the transformational one-million-tonne-a-year expansion project, put in place supporting financial arrangements and delivered positive operational results, he notes.