Valais Refinery Chimneys Demolished for Tech Future.

The final two chimneys of the former Tamoil Switzerland refinery in Collombey-Muraz were demolished on Thursday as redevelopment efforts continue to transform the industrial site into a future technology hub.

The massive chimneys, each standing approximately 100 metres high and weighing a combined 4,000 tonnes, collapsed within seconds during the carefully planned demolition. Officials described the structures falling “like a house of cards” after controlled explosives were triggered.

The operation required nearly three months of preparation and around 50 kilograms of explosives. Authorities temporarily closed nearby roads and surrounding areas for safety during the demolition process.

According to Stéphane Trachsler, extensive environmental studies, technical reviews, and risk assessments had been conducted since 2024 to ensure the demolition could proceed safely. Field tests were also carried out in 2025 to monitor possible ground vibrations and environmental impact.

The demolition marks another important step in the transformation of the former refinery site, which authorities and developers hope to convert into a centre for new technologies and innovation in the canton of Valais.

Project leaders also confirmed that rubble and construction materials from the demolished chimneys will be recycled and reused in regional construction projects, supporting sustainability efforts linked to the redevelopment.

The refinery site redevelopment is seen as part of Switzerland’s broader shift toward cleaner industries, technological innovation, and modern infrastructure development.

Swiss Police Probe Another Moretti Property Fire.

Authorities in Switzerland have expanded the investigation linked to the deadly Le Constellation Bar Fire tragedy by examining another property owned by the Moretti couple in the canton of Valais.

According to reports from RTS, prosecutors and cantonal police are now investigating a 2024 fire at the “Le Vieux Chalet” restaurant. The property also belongs to Jessica and Jacques Moretti, who are connected to the ongoing Crans-Montana case.

The “Le Vieux Chalet” restaurant was destroyed by fire on February 29, 2024. At that time, authorities concluded that a technical malfunction was the likely cause of the incident. Prosecutors previously ruled out deliberate or accidental human involvement and closed the case without pursuing criminal charges.

However, following the devastating fire at “Le Constellation” bar on January 1, investigators reopened their interest in the earlier restaurant fire. Valais prosecutors officially assigned a new investigative mandate to the cantonal police on April 29.

The investigation aims to analyse suspicions reportedly raised by the Federal Office of Police, including possible insurance fraud linked to the previous fire incident.

Valais cantonal public prosecutor Beatrice Pilloud confirmed the investigation to media outlets. Meanwhile, lawyer representatives for Jacques Moretti criticised the decision to reopen scrutiny into the earlier case.

The broader Crans-Montana fire tragedy continues to attract major public attention in Switzerland after the disaster claimed dozens of lives and triggered extensive legal and criminal investigations.

Authorities have not announced any formal charges related to the latest inquiry, and investigations remain ongoing.