Tuesday, 11 August 2026
Community · Cautionary

Mercury in the pits: Uganda's Minamata obligations meet artisanal reality

Mercury persists because it is cheap, portable and works without capital. Any replacement has to match all three.

By Grace NabwireEnvironment and Communities Correspondent6 min read

The obligation

As a party to the Minamata Convention, Uganda is committed to reducing and where feasible eliminating mercury use in artisanal and small-scale gold mining, including through national action planning and support for alternative processing.

Why the phase-down stalls

Amalgamation requires no plant, no electricity and no working capital, and it delivers a saleable product the same day. Gravity concentration plus shared cyanidation delivers better recovery but requires a fixed facility, trained operators and a payment model that survives a bad month.

Programmes that supplied equipment without a maintenance budget and an offtake channel have generally failed within two seasons. That is a design failure rather than a behavioural one.

What has worked regionally

Centralised processing hubs serving multiple licensed cooperatives, with tailings retained and reprocessed rather than discarded, have reduced mercury demand where they were paired with a guaranteed buyer. Licensed medium-scale operators adjacent to artisanal workings are the most plausible hosts for that infrastructure.

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