Cyber Security Incident

• Malicious cyber activity involving unauthorized third-party access to IT systems
• Temporary disruption to parts of the Group's operations
• Majority of operations restored, targeted remediation ongoing
• Notified Australian Cyber Security Centre, coordinating with clients and authorities

ALS Limited (ASX: ALQ) has recently identified malicious cyber activity involving unauthorised third-party access to some of its IT systems. The incident caused temporary disruption to parts of the Group's operations. ALS's IT and security teams, supported by external cyber incident response specialists, immediately took and continues to deploy containment action, in line with the company's incident response procedures. The vast majority of ALS operations have been restored and are currently operational, with targeted remediation continuing in specific areas. ALS has notified the Australian Cyber Security Centre and is coordinating with its clients, relevant government agencies and regulators. The security and privacy of all information entrusted to the company is a responsibility ALS takes seriously. ALS continues to investigate the incident to understand the full extent and potential impacts to data and is working as quickly as possible to provide certainty for all stakeholders.