Mexico Seizes 300 Bitcoin (BTC) Mining Rigs Wired Into Nuevo Necaxa Dam

300 Rigs Seized in Tlaola Raid

Mexican federal prosecutors, the Navy and Puebla state police have seized 300 crypto mining rigs from a property in Tlaola, a remote municipality of roughly 20,000 people in the state's Sierra Norte, dismantling a farm that was siphoning electricity from a federal hydroelectric complex fed by the Nuevo Necaxa dam. The state security ministry confirmed the seizure in an official post published on Sunday. Alongside the machines, officers hauled away transformers, medium-voltage terminals and working satellite internet antennas — infrastructure that points to an operation built for continuous, high-volume compute rather than a hobbyist setup. Mining itself is legal in Mexico, so prosecutors are preparing an electricity-theft charge against the operators instead. State security minister Francisco Sánchez told reporters the investigation zeroed in on the area because of its proximity to the dam, where investigators found “a very large power connection.” Equipment recovered at the scene was described as GPU-based, which matters for the asset angle: graphics-card rigs typically target GPU-minable proof-of-work coins rather than Bitcoin, whose mining long ago consolidated into specialized ASIC farms. Coins once mined this way include Toncoin — before its move off proof-of-work — and Zcash, whose one-time trusted setup, the Zcash ceremony, became one of crypto's best-known launch events. Even Ordinals-era tokens like ORDI, which ride on Bitcoin itself, have no bearing on that hardware split: BTC's hash rate belongs to ASICs. Officials have not named which assets, if any, the Tlaola operators were producing.

official posthttps://twitter.com/SSPGobPue/status/2096660625501892719

Laundering Probe and a Quadruple Murder

Puebla's Public Security Secretariat is now widening the search for similar sites into neighboring states. Sánchez said mining “consumes a great deal of energy and generates a lot of noise,” which pushes operators toward isolated locations — behavior that ultimately alerted authorities. He described the Tlaola site as part of a network exploiting the Sierra Norte's hydroelectric infrastructure, with the same activity under way in neighboring states. Forensic accountants are tracing who paid for the hardware, money laundering has not been ruled out, and the state government is examining whether assets minted there were used to wash criminal proceeds. Mexico's Federal Electricity Commission has joined the investigation; the utility booked 6,346 gigawatt hours of non-technical losses — theft, meter tampering and illegal connections — between January and July 2024, worth about 13.8 billion pesos ($817 million). Three other mining operations were dismantled across Puebla and neighboring Tlaxcala in 2025, and a farm found near the same dam last year was allegedly run from properties belonging to the electrical workers' union. The case also brushes against violent crime: prosecutors believe the murder of Jonathan Meléndez, his pregnant wife Ana Paula Barragán, their three-year-old daughter Sofía and 21-year-old nanny Aleyda Romero was motivated by a BTC stash the killers believed was worth millions. Diego Sebastián “N” and Gerardo “N” were arrested on September 2, though no BTC was actually taken; a witness later described a device holding 3 million pesos in crypto — about $177,000 — the kind of offline key storage a hardware wallet such as the Tangem wallet is built to secure. The pattern is not Mexico's alone: Malaysian authorities last year seized more than 75,000 rigs over utility-valued power theft of $1.1 billion. Readers tracking the market in real time can follow live spot and futures prices on MEXC.

An $817 Million Grid Problem

Our read of the primary record — the security ministry's own post confirming the dam connection and the 300 seized machines — is that Mexico is separating legal mining from grid theft rather than attacking the industry itself. With roughly $817 million in utility losses through July 2024 and a string of prior raids across Puebla and Tlaxcala, enforcement here is chasing stolen kilowatt-hours, not hash rate. Licensed Bitcoin mining faces no new restriction; the state's target is the illegal tap.