Berkshire Hathaway reported that Precision Castparts, acquired in 2016, experienced a $2 billion rebound in value after a period marked by a $10 billion writedown and significant job cuts. While the recovery indicates improving market conditions for aerospace, the severe layoffs raise concerns about labor practices and the treatment of workers.

Precision Castparts Corp. was fined $3 million by the U.S. DDTC for multiple violations of the AECA and ITAR. The violations involved unauthorized exports of sensitive technical data from its subsidiary Mold Masters, raising concerns about national security. Although the company voluntarily disclosed the issues and implemented remedial compliance measures, the initial lapse poses significant risks related to both internal controls and technological exports.

Precision Castparts Corp. agreed to a $3 million settlement for export control violations related to parts for gas turbine engines. The settlement includes a suspended $1 million penalty contingent upon the company's investment in compliance improvements and the appointment of a special compliance officer.

Precision Castparts Corp. reached a 36‐month consent agreement with the U.S. Department of State, agreeing to pay a $3 million civil penalty for over 20 export control violations related to supplying tools and wax molds used in gas turbine engine component production to several foreign nationals. The settlement also requires the appointment of an internal special compliance officer, external audits, and additional compliance measures.

Precision Castparts was fined $3M for violating the Arms Export Control Act and ITAR by exporting controlled defense-related components to foreign employees without the proper licenses. The company later cooperated with authorities, voluntarily disclosed the issues, and committed to remedial measures including hiring a special compliance officer and implementing an automated compliance system.

Precision Castparts Corp. agreed to a $3 million settlement for violating U.S. export restrictions on gas turbine engine parts, reflecting a breach in compliance and ethical business practices.

Workers at PCC Structurals, a subsidiary of Precision Castparts, decertified their union following a prolonged campaign of union busting that included hiring professional union-busters, discriminating in pay raises, and mounting legal battles to suppress unionization efforts.

A federal appeals court upheld a ruling against Precision Castparts after the company refused to bargain with its unionized welders, a decision that reinforced workers’ rights and exposed the company’s anti-labor practices. The union, International Association of Machinists and Aerospace Workers, welcomed the ruling as it paves the way for contract negotiations and criticizes the firm’s historical stance, starkly contrasting with Warren Buffett’s pro-labor image.

Precision Castparts Corporation lost its legal appeal to avoid recognizing a welders' union, following three and a half years of resisting union recognition and collective bargaining. The U.S. Court of Appeals denied PCC’s appeal on March 16, 2021, paving the way for the National Labor Relations Board to enforce the law.

Precision Castparts Corp. lost a U.S. Court of Appeals ruling on its challenge to an NLRB decision regarding its refusal to bargain with approximately 100 welders at its PCC Structurals subsidiary, an effort aimed at stifling unionization among its workforce in 2017.