BENGALURU: Barrick Mining said on Monday it was exploring an initial public offering of a subsidiary that would hold its North American gold assets amid a record rally in bullion prices. US-listed shares of the Canadian miner rose 3.7 percent in premarket trading. A split would reverse Barrick’s 2019 merger with Randgold Resources, and comes as investors pressure the miner to use a historic rally in gold prices to boost returns, while shedding riskier assets in Africa, Papa New Guinea and Pakistan’s Reko Diq.