UPDATE 1-China's commodities imports fall in May on high stocks, weak margins

(Recasts to monthly figures, adds details)

SHANGHAI, June 8 (Reuters) - China's imports of major commodities fell in May from the previous month, customs data showed on Sunday, as companies scaled back on orders after robust shipments in the previous months caused a supply overhang.

China, the world's largest energy consumer, imported 26.08 million tonnes, or 6.14 million barrels per day (bpd) of crude oil in May.

On a daily basis, crude imports fell 9.4 percent from the record high of 6.78 million bpd in April, as refineries cut production during the peak maintenance season.

Crude runs may be capped as refineries entered the peak maintenance season. PetroChina shut its largest 410,000-bpd Dalian refinery for maintenance from April 10 to late May, industry sources have said.

Other plants conducting maintenance last month included Sinopec's Shijiazhuang, Tianjin, Qilu and Yangzi refineries, Xinhua OGP said.

Iron ore imports stood at 77.38 million tonnes in May, down 7.2 percent from the previous month. Total imports in the first five months of 2014 was up 19 percent from year ago at 382.7 million tonnes.

Confronted by swollen inventories and falling steel prices, mills and traders in China have slowed down fresh purchases of the raw material, causing iron ore prices to fall.

In a sign that slower domestic demand was pushing Chinese steel makers to push for more sales abroad, customs data showed steel products exports rose 7 percent in May from month ago to 8.07 million tonnes, while arrivals fell 6.2 percent to 1.22 million tonnes.

Copper imports from the world's top consumer fell 15.6 percent from a month ago to 380,000 tonnes in May. The figure includes anode, refined, alloy and semi-finished copper products.

Soybean imports to China, the world's largest buyer, stood at 5.97 million tonnes in May, down 8.2 percent from 6.50 million tonnes in April.

Imports of coal, including lignite, dropped 11.4 percent in May from the preceding month to 24.01 million tonnes, as falling domestic prices made overseas supplies less attractive. Rising hydropower generation, along with sluggish economic growth, also led utilities to reduce orders.

(Reporting by Fayen Wong; Editing by Michael Perry)