LAUSANNE. Switzerland's commodity trading houses, which handle a third of the world's traded oil and a large share of its metals and grain, are recalculating their exposure after federal lawmakers settled the contours of a revised corporate liability regime that reaches deep into foreign subsidiaries.

The amendment to the Criminal Code, which completes its parliamentary passage this session, holds a company criminally liable when an offence committed abroad by a subsidiary or agent can be traced to inadequate organisation or supervision at the Swiss head office. Convictions can bring fines of up to 20 million francs, alongside confiscation of profits and exclusion from public tenders.

The legal question that dominated the drafting was how far liability should travel down a corporate chain. Earlier proposals covered only entities a company majority-controls; the final text extends to any entity over which the Swiss parent exercises decisive influence, a formulation intended to capture the joint ventures and off-balance-sheet vehicles common in the trading sector.

The question is no longer whether the group knew, but whether the group organised itself to know.

The reform grew out of a series of bruising cases. Swiss prosecutors have investigated bribery allegations involving commodity intermediaries in Brazil, the Republic of Congo and Kazakhstan, and several proceedings stalled because prosecutors could not show that anyone in Zug or Geneva knew of the payments. Under the new rule, knowledge is no longer the crux: a failure to maintain adequate compliance systems is itself enough.

The sector's weight makes the stakes unusually high. Commodity trading contributes roughly 4 per cent of Swiss gross domestic product and employs around 35,000 people directly, concentrated in Geneva, Zug and Lugano. Industry economists estimate that the four largest houses each book annual revenues exceeding 100 billion dollars, sums that dwarf the fines on paper but concentrate minds when licence and banking relationships are at risk.

Trading houses have spent two years preparing. The larger firms have expanded compliance teams, introduced deal-level due diligence on intermediaries, and in some cases declined profitable business in jurisdictions where agents could not be vetted to the new standard. Smaller traders, which often operate with a handful of staff, say the fixed costs of compliance will squeeze them hardest.

A compliance officer at a Geneva trading firm said: “We used to ask whether the agent was effective; now we first ask whether we can document that we asked.” That shift, he added, has already killed several long-standing intermediary relationships. Colleagues at rival houses report the same quiet culling of agents who cannot survive written due diligence.

Civil society groups that campaigned for the reform, including Public Eye and the Swiss Coalition for Corporate Justice, called it a genuine advance while faulting the fine ceiling. They note that 20 million francs is less than a single day's revenue for the biggest houses, and argue that liability without meaningful sanctions risks becoming a licence fee rather than a deterrent.

Defence lawyers take the opposite view. The criminal law commission of the Swiss Bar Association warns that the decisive influence test is vague enough to chill legitimate joint ventures, and predicts years of litigation over which entities fall within a group's organisational perimeter. Some cantonal prosecutors privately share the concern, fearing complex cases they lack the staff to pursue. The Federal Prosecutor's Office has requested four additional posts for its economic crime division in anticipation.

The law enters into force eighteen months after promulgation, giving companies a defined window to audit their structures. The State Secretariat for Economic Affairs will publish guidance on what counts as adequate organisation, and that document is expected to become the de facto standard against which prosecutors measure failures. Drafting of the guidance begins this autumn, with industry and civil society both promised a seat at the consultation table.

For a sector that has long traded on Switzerland's discretion and legal stability, the deeper change is cultural. Liability that attaches to organisational failure rather than individual intent means the paper trail, not the smoking gun, will decide the next generation of cases.