** Shares of Zijin Gold International 2259.HK rise 3.7% to HK$149.3, set for biggest one-day pct gain since Dec 22
** Chinese gold miner estimated net profit to be about $1.5-$1.6 bln for 2025, up 212%-233% from year-ago period, on hikes in mine-produced gold output, sales price
** Zijin Gold, a spinoff of China's Zijin Mining 601899.SS, proposes production volume plan of mine-produced gold for 2026 to be 57 tonnes
** Zijin Mining Shanghai shares 601899.SS surge 5.8% to 35.36 yuan, a record high level since debut in May 2008
** Zijin Mining Hong Kong stock 2899.HK rises 4.6% to HK$36.98, their highest point since debut in Dec 2003
** Since debut on Sept 30, Zijin Gold International up 103.4%
(Reporting by Donny Kwok)
((donny.kwok@thomsonreuters.com))