Impala Platinum Holdings Ltd. will build a power plant fired by fuel cells at its South African refinery as the world’s largest producers of the metal seek to boost demand amid falling prices. The cells, driven by excess hydrogen from the refining process, will use platinum as a catalyst to generate an initial 1.8 megawatts at the Springs-based plant, 65 kilometers east … [Read more...] about Impala to Fire Platinum Refinery With Fuel Cells Amid Price Drop