Worldwide demand for sand totalled about 9.55 billion tonnes in 2017 with a market value of $99.5 billion and is projected to reach almost $481 billion in 2100.
The country's largest gold producer reported a 20% jump in fourth-quarter adjusted net profit to $291 million compared with last year, lifted by increased production and rising sales of the metal.
China iron ore futures rose to a record on Monday, the first session after a week-long national holiday, on concerns that supply from Brazil, the country's second-largest ore supplier, may decline after a fatal dam accident at a Vale mine.
Shares in the gold miner are up more than 50% since September when Barrick said it was buying Randgold Resources and when Mark Bristow was named as chief executive, taking over as head of the merged entity from January.
