** Shares of chemical companies decline after China imposes 34% additional tariffs on imports from the U.S.

** China was the third-largest importer of U.S. exports (measured by value) in 2024, accounting for 7% of U.S. exports, says BIMCO Chief Shipping Analyst Niels Rasmussen

** Chemicals made up 18% of the value of U.S. exports to China, Rasmussen says

** Chemours CC.N down 9.3% and Celanese CE.N falls 9.7%

** Dow DOW.N down 6.4% and Eastman Chemical EMN.N drops 4.8%

(Reporting by Seher Dareen in Bengaluru)

((Seher.Dareen@thomsonreuters.com;))