GLOBAL LNG-Asian spot prices retreat again as shipping clogs up

* Few tankers free for spot trades, boosting shipping rates

* Some vessels used as storage in hope of price rises

* Ample supply added to by new U.S. start-up from Cheniere

By Sabina Zawadzki

LONDON, Nov 15 (Reuters) - Asian spot prices for liquefied natural gas (LNG) fell this week despite several Japanese buyers in the market, as sellers held onto cargoes hoping for higher bids and used tankers as storage, which also reduced ship availability for other deals.

Spot prices for January delivery in North Asia (LNG-AS) were heard at $10.90 per million British thermal units (mmBtu), 30 cents lower than last week. A trade was heard at $11.10 on Thursday, lower than on Monday.

For late December, spot prices were heard at $10.40 per mmBtu, although they were under the $10 mark for early December delivery weeks. Spot prices for the whole month of December were estimated at $10.10, compared to $10.30 last week.

LNG prices have fallen in eight of the past ten weeks after an earlier rush to stock up on supplies ahead of winter at the start of September.

LNG shipping rates hit their highest on record this month, with several shippers heard paying $200,000 a day to transport the super-chilled fuel.

Such levels signal very little availability of vessels for December and January. Rates began rising as more production came onstream and as charterers, fearing even higher costs, locked in vessels for multi-month contracts.

This is now being compounded by owners of LNG with chartered ships hanging onto the cargoes in the hope of a rise in prices. Up to 20 tankers with at least 2 million cubic metres of LNG worth $400 million are floating in Asian waters, sources said.

"All traders exposed to the freight market will think twice about moving a cargo in the spot market," said one LNG trader. "Portfolio players with a contracted fleet will perform much better. We'll probably see more swapping cargoes."

There were several Japanese buyers in the market -- Tohoku Electric Power Co Inc awarded a one-cargo tender to Qatar for Dec. 25-30 delivery, according to one trader.

Nippon Steel & Sumitomo Metal sought one cargo for mid-January delivery in a closed tender after sounding out the market last week. And power utility Kansai Electric Power Co was seeking two cargoes for December delivery.

Pakistan's tender for one cargo in January and two in February was still open with bids due on Dec. 5.

Gladstone, operated by Australia's Santos, was heard offering a cargo for Dec 12-14 delivery. Abu Dhabi's ADNOC awarded a tender for mid-December loading.

Adding to recent new supply from Australia and Russia, Cheniere Energy produced first LNG from the U.S. Corpus Christi plant, a major milestone marking the start of the third major LNG export facility operating in the country.

(Reporting by Sabina Zawadzki; Editing by Kirsten Donovan)