In a statement, the AIM-listed firm said that the site in Oklahoma, USA has undergone hydrostatic testing and evaluations of its systems and is currently processing iodine rich brine water.
The group said the IO#7 plant repurposed many materials from IO#3 and has been completed within the company's expected timeframe and budget.
Iofina expects that the production from IO#7 will favourably impact the group's overall iodine production output as well as lowering overall production costs.
Over the next few weeks, it added, the team will be lining out the parameters of operations at IO#7 to maximise iodine output.
Iofina’s president and CEO Dr. Tom Becker, commented: ''The start of production at IO#7 is a proud achievement for the Iofina team as it demonstrates the successful execution of our long term strategy - to increase iodine output whilst lowering production costs.
“Completing this project within time and budget further showcases the strength of the workforce at Iofina. Iodine prices continue to strengthen, and the Group is well placed to advance its position in the global iodine market. "
The group said a new image of the IO#7 plant can be viewed on the company's website.