Global insurers plot cautious course to Iran

* Iranian insurers see tie-up interest from foreign players

* Local insurance market worth $7.4 bln in premiums

* Iranian players seeking credit ratings to help partnerships

* Caution remains over U.S. restrictions still in place

By Bernardo Vizcaino and Carolyn Cohn

SYDNEY/LONDON, Jan 24 (Reuters) - Global insurance firms are circling Iran for business opportunities following the lifting of sanctions - and the first test of their appetite could come in March when some Iranian companies seek new cover.

Insurers, the reinsurers that share their risk and the brokers that forge deals are exploring ways to tap a market worth $7.4 billion in premiums after a nuclear accord between world powers and Tehran led to the removal of restrictions on financial dealings with Iran this month.

Allianz, Zurich Insurance, Hannover Re and RSA, for example, said in recent days that they would evaluate potential opportunities in the country.

Insurance and reinsurance specialists regard the marine and energy sectors as among those offering the best opportunities in oil-producing Iran. Alongside commercial cover, life insurance is a potential growth area as it represents less than a tenth of overall Iranian premiums, compared with more than half globally.

At first international companies are likely to link up with Iranian firms to capitalise on their local knowledge and to reinsure local insurance in the international market, according to industry experts, with international brokers helping foreign firms get that business.

American insurance industry players are still banned from doing business in Iran, however, due to separate U.S. sanctions that remain in place.

The insurance contracts of some Iranian companies expire when the Persian calendar year ends in late March - similar to the January renewal season in Western countries - and they will be looking to strike new agreements. This could include insurance firms themselves seeking new reinsurance cover.

Mohammad Asoudeh, vice chairman and managing director of Iranian Reinsurance Co, told Reuters he had already been contacted by foreign insurance players looking to forge tie-ups with his company and enter the market.

"They have been waiting for Implementation Day," said the 30-year industry veteran, referring to the day this month when the U.N. atomic agency confirmed Tehran had met its commitments under the nuclear deal. "We have had enough visits (from foreign firms)... resuming business could be quick but will depend on the terms and conditions they offer us."

"There are some market renewal dates in two months' time. This will be a good point to start."