The developers behind a $500 million battery plant planned for north St. Louis have officially canceled the project.

In an SEC filing this week, Israeli-based ICLGroup Ltd. told shareholders it will cease operations in North America , effectively ending the lithium battery plant planned for the north riverfront.

The company called the decision part of a “strategic review" of its operations. In October, the Department of Energy pulled a $197 million federal grant for the project.

The company reported on the possibility of discontinuing the project in a Securities and Exchange Commission filing , estimating that it could garner a $40 million investment write-off if it did.

Developers had said the plant would create more than 150 jobs, and local officials called the project a big

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