Heraeus: Whistleblower Claims Expose ‘Culture of Silence’ & Fraud Probe

Frankfurt prosecutors are investigating allegations of systematic fraud and embezzlement at German industrial conglomerate Heraeus, a scandal that has exposed a “culture of silence” within the family-owned company. The investigation, confirmed last month, centers on February revelations of potentially illegal practices spanning more than a decade, involving the retention of precious metals rightfully belonging to customers.

The company has already set aside €460 million to cover financial risks related to the allegations, which concern its precious metals recycling business. According to internal investigations commissioned by Heraeus, the first warnings about potentially illegal conduct surfaced as early as 2013, with further alerts raised in subsequent years. The scope of the investigation has broadened to include potential breaches of European Union sanctions against Russia, adding another layer of complexity to the unfolding crisis.

A draft report by law firm CMS Hasche Sigle, completed last summer, detailed seven potentially illegal practices and accused Heraeus management of “perpetuating” the illicit handling of production leftovers for years. The report specifically highlighted a “culture of silence” that allegedly stifled internal dissent and allowed the practices to continue unchecked. The findings suggest that Heraeus deliberately tweaked its machinery and production processes to maximize the amount of leftover metal retained, to the detriment of its clients.

In one instance, the report alleges that the amount of valuable leftover metal was “knowingly and deliberately increased over time…without this being made sufficiently transparent to affected clients.” The firm found that the practice was carried out “at the expense of the customers’ economic interests in order to obtain an economically inappropriate and contractually unlawful advantage.”

The current investigation builds on earlier internal reviews. A 2015 draft report by Clifford Chance, also commissioned by Heraeus, reportedly warned of “considerable” legal risks, including potential criminal charges and multi-million euro liabilities. However, the report was never finalized. CMS Hasche Sigle’s investigation revealed that Heraeus had instructed Clifford Chance to remove detailed descriptions of the alleged conduct from the 2015 draft report, a move the firm interpreted as an attempt to avoid creating a paper trail.

The allegations center on the retention of metal dust and shavings left over from milling processes. Rather than returning these materials to customers – as contractually obligated – Heraeus is accused of keeping them, effectively profiting from assets that did not belong to the company. The scale of the alleged retention was flagged in a 2023 whistleblower complaint, prompting an initial internal investigation that CMS Hasche Sigle later deemed flawed and potentially intended to conceal the illicit activity.

Heraeus Chair Franz Haniel acknowledged that, “from today’s perspective, the issues raised at the time were not made transparent and tracked in a way that would have been problem solving.” Chief Executive Frank Stietz, in an internal message to employees, stated that the handling of the compliance case had “painfully brought home how serious the consequences are when our values are not upheld.” Stietz, who has been with the group since 2015, added that “we have since taken measures to rectify the situation, including removing those responsible and reaching settlements with our customers.”

Founded in 1851, Heraeus is one of Germany’s oldest industrial companies, specializing in precious metals, quartz glass, sensors, biomaterials and medical products. The Heraeus family, which retains ownership of the business, is among Germany’s wealthiest, with assets estimated at €7.1 billion. Former Chief Executive Jan Rinnert, who left the company shortly before Heraeus alerted authorities to the potential fraud in 2025, is among those currently under investigation, according to sources familiar with the matter.

The investigation extends beyond the precious metals business. Heraeus’ Electro-Nite unit, which manufactures equipment for monitoring molten metals, is also under scrutiny for potential breaches of EU sanctions against Russia. An internal compliance investigation in 2023 initially found no violations, but a renewed review triggered by a subsequent tip-off in 2025 led to a preliminary conclusion by law firm Gleiss Lutz that sanctions were likely breached through approximately €7 million worth of deliveries to Russia, routed through intermediaries in China.

Heraeus has stated that it has tightened internal controls to prevent further shipments and that senior managers at the Electro-Nite subsidiary have left the company. The company has proactively notified the authorities regarding the potential sanctions breaches. The unfolding scandal raises serious questions about corporate governance and compliance within one of Germany’s most prominent industrial families, and could have wider implications for the country’s reputation for business integrity.