(Adds New Zealand King Salmon's performance)
** Sanford SAN.NZ and New Zealand King Salmon Co NZK.NZ
decline 4.7% and 3.8%, respectively
** SAN shares at more than five-year low, among top losers
on the New Zealand benchmark index .NZ50
** New Zealand says seeking clarification from China after
being informed that exports from two of its seafood facilities
were suspended urn:newsml:reuters.com:*:nL4N2KG053
** China is New Zealand's largest trading partner, with
around 35% of its seafood being exported to the mainland
** Sanford says GACC, the Chinese authority responsible for
the country's customs, suspended imports from its Havelock
mussel processing facility after a video audit urn:newsml:reuters.com:*:nFWN2KF1EG
** SAN marks biggest intraday drop since Nov 5
** Rival NZK falls most since Nov 6, hits one-week low
(Reporting by Riya Sharma and Anushka Trivedi in Bengaluru)
((Riya.Sharma@thomsonreuters.com;))