IPOH: The reason behind the bluish hue in Sungai Perak remains unclear and there is no proof connecting it to mining operations, says Datuk Seri Saarani Mohamad.
The Perak Mentri Besar said records showing similar cases of the river turning blue were reported as far back as 2018 in the same area, well before the rare earth element (REE) mining industry began operations in the state.
He said investigations at the time suggested that the phenomenon coincided with periods of unusually heavy rainfall.
“The Mineral and Geoscience Department also said that Hulu Perak is naturally rich in minerals such as tin ore, copper and manganese.
“During heavy rain, minerals in the soil can be carried into the river, potentially affecting its colour,” he said in his Budget 2026 winding-up speech at the state assembly sitting here yesterday.
“Proper testing for radioactivity also requires instruments such as neutron activation analysis, alpha spectrometry or gamma spectrometry.
“The Natural Resources and Environment Sustainability Ministry stressed that the Atomic Energy Department remains the only authorised body to verify any atomic energy-related activities under the Atomic Energy Licensing Act 1984.”
Saarani said a task force involving the relevant technical departments has been set up to investigate the issue.
“Stern action will be taken if violations are detected. Atom Malaysia will conduct a comprehensive analysis to measure actual radioactivity levels at the REE mining project site,” he said.
On Oct 21, a video of Sungai Perak near Kampung Sungai Papan, Gerik, turning blue went viral.
On Nov 5, Saarani said the government ordered three mining operations near the site to temporarily halt activities pending investigations.
On the total royalties collected from the export of rare earth carbonate (REC), Saarani said the state had collected a total of RM71,583,781.07 from February 2023 to July 2025.
He said the state government imposed a royalty rate of 12% on the sales value of REC.
“This rate is higher compared with other exported minerals, reflecting the high global market value of REE,” he said.
