By Brazil Stock Guide – Brazil’s electricity regulator Aneel has revoked the license of Gold Comercializadora de Energia Ltda., after the trading company incurred losses of more than R$1 billion ($200 million). The watchdog said Gold defaulted on regulated contracts, failed to post mandatory collateral in the Short-Term Market (Mercado de Curto Prazo, MCP), and engaged in speculative operations that shifted costs to co-ops, distributors, and consumers.
The Chamber of Electric Energy Commercialization (CCEE) reported that in August 2025 alone Gold’s defaults reached R$28 million ($5.5 million), on top of fines of more than R$2 million ($390,000). Aneel estimates the company’s failure to deliver energy could cost as much as R$300 million ($58 million) in the Regulated Market (ACR) between 2025 and 2026, while unposted guarantees in May totaled R$17 million ($3.3 million).
Aneel board member Fernando Luiz Mosna, who reported the case, said “when corporate behavior in a regulated sector exceeds tolerable risk and turns into harmful speculation, the institutional response must include collective judicial protection.”
Shareholders face liability
The case has been sent to the Federal Attorney’s Office at Aneel (PF/Aneel) to file a class action lawsuit seeking piercing of the corporate veil. The move would allow authorities to seize assets from Gold’s shareholders and executives to cover the company’s debts. Recommended measures include dividend freezes, asset seizures, and blocking of personal property.
The crackdown comes as Brazil prepares to expand its free energy market, with new rules allowing low-voltage consumers to migrate to the Free Contracting Environment (ACL). Aneel said safeguarding market credibility is crucial to prevent similar crises that could affect tariffs.
Ripple effects on consumers
Gold’s defaults have already hit contracts with co-ops such as Coopernorte and distributors including Eletropaulo, Coelce, Celpa, Cemar and Light, forcing them to buy emergency power in the MCP. The Settlement Price for Differences (PLD), a benchmark in the short-term market, surged in the North region from R$58/MWh ($11/MWh) in January to R$286/MWh ($56/MWh) in August.
That spike has translated into higher tariffs for captive consumers. In the first half of 2025 alone, Gold’s negative exposure totaled 101.89 average MW, equal to R$9.2 million ($1.8 million) in collateral the company failed to post.
The revocation marks one of the toughest penalties imposed on a trader since Brazil created its free energy market in 1998. For investors, the case highlights regulatory risk and the need for financial discipline in a sector that moves more than R$200 billion ($39 billion) a year.
Rivals are now set to fill the gap left by Gold, while co-ops and distributors are forced into emergency renegotiations under worse terms. For Aneel, holding shareholders and executives personally liable is key to restoring confidence as Brazil heads toward full market liberalization and prepares its energy security agenda ahead of COP-30 in Belém.
Sought for comment, Gold Energia did not respond. The company’s side of the story remains open.
Founded in São Paulo in the mid-2010s, Gold Energia grew rapidly into one of Brazil’s most aggressive power traders. With annual revenue above R$30 billion ($5.9 billion) by 2023, the company secured regulated contracts and bilateral deals with co-ops and distributors. Leveraged short-term bets boosted its rise but also accelerated its collapse, leading to Aneel’s license revocation in 2025.