Oct. 11 (Bloomberg) -- JinkoSolar Holding Co., a Chinese maker of solar panels, resumed production at a cell factory after completing upgrades and reviewing policies following a chemical spill that prompted protests by local villagers.

A temporary waste-storage unit at Jinko’s factory in Haining, China, released fluoride into a small water channel after heavy rains, the Jiangxi-based company said today in a statement.

The manufacturer of solar cells and modules said Sept. 19 that waste containing fluoride was swept from the plant into a nearby river following the rains. Shares of the company fell the most ever that day when the company suspended operations.

JinkoSolar’s American depositary receipts rose 6.1 percent to $7.12 as of 10:08 a.m. in New York. The shares have dropped 65 percent this year.

--Editors: David Glovin, Jasmina Kelemen

To contact the reporter on this story: Christopher Martin in New York at cmartin11@bloomberg.net.

To contact the editor responsible for this story: Reed Landberg at landberg@bloomberg.net.