Overview
- The deaths took place Monday evening when a maintenance crew was inspecting an external nano‑filtration feed tank at Tata Electronics’ Hosur site; one worker collapsed after looking into the tank and two colleagues who entered to help also lost consciousness.
- Police and district officials say preliminary enquiries point to inhalation of toxic gas or asphyxiation but post‑mortem results and forensic tests are pending to establish the precise cause of death.
- The effluent treatment unit is run by Nalco Water (Ecolab) and the three victims were employed through a Nalco subcontractor, raising questions about contractor oversight, confined‑space procedures and use of gas monitors and protective gear.
- Nalco/Ecolab has said it is cooperating with authorities and will provide compensation to families while Tata Electronics and Apple have launched internal reviews and state safety, pollution and police authorities have opened formal investigations.
- The incident renews scrutiny of the Hosur complex, a major node in Apple’s India supply chain that has faced a 2024 chemical fire, a 2026 ransomware breach and past pollution complaints, and it could prompt stricter confined‑space and contractor safety checks at the site.