One of the world’s largest chemical companies was awarded nearly $920 million in a trade secrets theft case last year against a rival manufacturer accused of stealing information about Kevlar brand technology to develop a competing high-strength fiber.

Now the federal government has brought its own case, criminally charging South Korea-based Kolon Industries Inc. and five executives with stealing secrets from DuPont. Justice Department officials and federal prosecutors in Virginia announced the indictment last week charging Kolon in the Eastern District of Virginia. The charges, including conspiracy and trade-secret theft, were filed under seal in late August.