Toshiba’s Westinghouse Electric unit and certain of its subsidiaries and affiliates filed voluntary petitions under Chapter 11 of the U.S. Bankruptcy Code on March 29, 2017.

According to court documents, Citibank served as administrative agent for $800 million in debtor-in-possession financing.

The DIP financing will fund Westinghouse’s core businesses of supporting operating plants, nuclear fuel and components manufacturing and engineering as well as decommissioning, decontamination, remediation and waste management as the company works to reorganize around these strong business units. Existing letters of credit have been cash collateralized in full and will remain in place. The financing will also allow for new letters of credit to be issued.

Westinghouse is seeking to undertake a strategic restructuring as a result of certain financial and construction challenges in its U.S. AP1000 power plant projects.

“Today, we have taken action to put Westinghouse on a path to resolve our AP1000 financial challenges while protecting our core businesses,” said Interim President and CEO José Emeterio Gutiérrez. “We are focused on developing a plan of reorganization to emerge from Chapter 11 as a stronger company while continuing to be a global nuclear technology leader.”

Westinghouse is represented by Weil, Gotshal & Manges. Westinghouse’s operations in its Asia and Europe, the Middle East and Africa Regions are not affected by the Chapter 11 filings.