Dec 5 (Reuters) - Nikkei:

* A JAPANESE STATE-BACKED INSURER WILL COVER A 100 BILLION YEN CREDIT LINE EXTENDED BY SUMITOMO MITSUI BANKING TO JERA FOR LNG PURCHASES - NIKKEI

* POLICY TO BACK LNG PURCHASES BY INSURING BANK LOAN, OFFERED BY NIPPON EXPORT AND INVESTMENT INSURANCE, WILL BE FIRST COVERING A DOMESTIC LOAN - NIKKEI

* NEXI WILL EVALUATE ONLY RISKS TIED TO JERA ITSELF, NOT THE COUNTRIES WHERE IT WILL DO BUSINESS - NIKKEI Further company coverage: