Autokiniton Global Group has completed the acquisition of New Boston-based Tower International, Inc., a manufacturer of engineered automotive structural metal components and assemblies.

AGG's Autokiniton US Holdings, Inc. subsidiary paid $31 a share in cash, or about $900 million after accounting for debt and pension liabilities. The deal was announced in July.

AGG is a portfolio company of KPS Capital Partners, a global private equity firm.