The first annual settlement between a major miner and a Chinese smelter in the fourth-quarter "mating season" usually becomes the benchmark for the year ahead and is used in supply contracts globally.
Besides limiting the accumulation of tailings in the environment, the process drastically cuts the almost one tonne of CO2 that is released into the atmosphere per tonne of cement produced under conventional mechanisms.
The president of the Fighting Committee for the Mining Corridor said that if the government proposal was not reasonable, a new blockade would be launched against Las Bambas.