Indonesia ban looms@
* China's Sept nickel ore imports at 7.13 mln T, up 24.6% m/m
* Volumes from Indonesia rise 56% from Aug to 2.51 mln T
* Ban on Indonesian exports from Jan 2020 sparks rush for ore
* Shipments from Philippines at 13 month-high of 4.39 mln T (Adds comment, background, graphic)
BEIJING, Oct 25 (Reuters) - China's nickel ore imports in September rose 24.6% from the previous month to their highest since at least 2016, customs data showed on Friday, as stockpiling accelerated ahead of a ban on shipments from top miner Indonesia from January 2020.
China imported 7.13 million tonnes of nickel ores and concentrates in total last month, according to data released by the General Administration of Customs.
That was also 24% higher than a year earlier and the highest monthly total in records on the customs database website going back to January 2017.
Indonesia confirmed on Sept. 2 it would advance a ban on nickel ore exports by two years, to the start of 2020, as it seeks to process more of its resources at home.
There were signs of stockpiling by China, the world's biggest nickel ore buyer, in August, amid rumors of the ban, but confirmation led to a bigger rush for ore in September.
China's nickel ore imports from Indonesia last month were 2.51 million tonnes, up 56% from August and up 47.5% from September 2018. That was also the highest volume since at least 2016.
The October import figure is set to be higher still, said a major purchaser in eastern China's Shandong province, who uses nickel ore to produce nickel pig iron, a raw material for stainless steel.
"Most of the material purchased in September will arrive in October," he added, putting the average shipping time from Indonesia to Shandong at around 12 days.
China's stainless steel output is "not so good" at the moment, said Xu Aidong, chief nickel analyst at research house Antaike.
"All the nickel ore they purchased may be for next year," she added, expecting China's total monthly nickel ore imports to stay at a high level of least 5 million tonnes over the rest of 2019.
Indonesia's mining ministry has recommended an increase of about 330,000 tonnes in the nickel ore export quota for miner PT Aneka Tambang (Antam), although export permits are only valid until December.
Shipments to China from the Philippines, an alternative supply source to Indonesia, but with lower-grade nickel ore, hit a 13-month high of 4.39 million tonnes in September.
That was up 10% from August and up 14.5% from a year earlier.
(Reporting by Tom Daly; Editing by Christian Schmollinger)