South Korean police have opened an investigation into senior executives of Samsung Electronics and SK Hynix over allegations that they misused company assets during bonus negotiations with labor unions, according to a report by CLS, the Chinese financial news service.
The criminal complaint, filed by the Korea Shareholder Rights Movement, has been transferred to the anti-corruption and economic crime division of the Gyeonggi Nambu Provincial Police Agency, and three representative directors of the two chipmakers are now under investigation, the report said. The allegations center on negotiations over performance bonuses with the companies’ unions, and whether management improperly used company resources or breached their fiduciary duties during the talks.
The investigation is the latest chapter in a dispute that has simmered since July, when workers at Samsung’s semiconductor operations went on strike over pay and bonuses. The strike, which disrupted production schedules at a time when the memory market was booming, was the most serious labor action in the company’s recent history, and the bonus negotiations that followed have become a battleground between management, unions and activist shareholders.
The timing is awkward for both companies. Samsung and SK Hynix are in the middle of the strongest memory upcycle in years, with DRAM prices rising and HBM modules selling as fast as they can be made. The two companies’ profits have recovered sharply, and their stocks have been among the best performers in Asia. A criminal investigation into the executives who run them, whatever its outcome, adds a layer of governance risk to what had been a clean narrative of cyclical recovery and AI-driven demand.
The Korea Shareholder Rights Movement has been a persistent critic of the chaebols, the family-controlled conglomerates that dominate the Korean economy. The group has filed complaints against other major companies over related-party transactions and governance practices, and its complaint against the two chipmakers fits a pattern of using the courts and the police to force changes in how Korea’s largest companies are run. The transfer of the complaint to the police means the allegations will now be examined as potential crimes rather than dismissed as shareholder posturing.
The union dimension complicates the picture. Korea’s labor movement has become more assertive in recent years, and the memory boom has given workers bargaining power they have rarely had: with profits at record levels, unions are demanding a share, and management has resisted. The bonus negotiations, and the allegations of misconduct during them, sit at the intersection of that fight and the shareholders’ governance campaign. Both sides have reason to use the investigation to pressure the other.
Analysts said the practical impact on the companies is likely to be limited in the short term. The investigation does not affect production, orders or pricing, and Korean prosecutors routinely take years to resolve such cases, often without charges. But the reputational cost is real: the two companies are the pillars of the Korean chip industry, and their management is now under a shadow just as they are negotiating contracts with the world’s largest AI companies. Customers value stability, and headlines about criminal investigations do not help.
For the broader market, the case shows that the memory boom, for all its financial power, has not solved the structural tensions of the Korean corporate system. The investigation will be watched as a test of whether the country’s largest companies can manage their labor relations and their governance at the same time, and whether the record profits of the AI era will be shared in ways that keep the peace. The next round of bonus negotiations will provide an early answer.
The investigation also raises questions about the balance of power in Korea’s semiconductor industry. Samsung and SK Hynix together control a large share of the world’s memory supply, and their factories are the most important piece of the global chip supply chain outside Taiwan. The two companies have historically kept labor relations quiet and profitable, and the July strike broke with that tradition. The police investigation, whatever it finds, signals that the era of quiet labor relations may be over, and that the record profits of the AI boom will be contested at the negotiating table, in the streets and now in the courts.
For shareholders, the case adds a new variable to an already rich story. The memory cycle is running in their favor, with prices rising and HBM demand outstripping supply, and both companies’ stocks have reflected that. Governance risk is the kind of thing that does not show up in earnings models, but it shows up in valuations when it materializes: a criminal investigation of the executives who set strategy is precisely the kind of headline that makes international investors pause. The companies have said little about the allegations, and their silence, for now, is a choice that speaks. The next few months, as the bonus talks resume and the police begin their work, will show whether the memory boom and the labor fight can coexist.
