16 October 2025

Iofina plc

("Iofina", the "Company" or the "Group")

(AIM: IOF)

Q3 2025 Corporate Update

Record Quarter in Iodine Production History

Iofina plc, specialists in the exploration and production of iodine and manufacturers of specialty chemical products, today provides an update regarding its activities during Q3 2025 (the "Period").

In the Period, Iofina Resources produced 215.8 metric tonnes ('MT') of crystalline iodide from its eight IOsorb® plants in Central and Northwest Oklahoma (Q3 2024: 163.9 MT). This represents a 32% increase in production, with 75 MT produced in September 2025 after IO#11 came online in July 2025. With water volumes to our plants expected to remain consistent through Q4 2025, production for H2 2025 is on track to be within the production range of 400-440 MT.

Pricing and demand for raw iodine have remained strong. The average realised iodine spot price is steadily above $70/kg, trending towards the mid-seventies, and prices are expected to remain at these levels for the rest of the year. The Company continues to experience strong demand for its crystalline iodine, with global iodine consumption expected to approach 40,000 MT in 2025.

The negotiations with our IO#12 partner have entered the final stages, and we are hopeful of signing an agreement shortly, and expect to commence the plant's foundation work by the end of the year.

President and CEO, Dr. Tom Becker, commented:

"The Company continues to execute its growth strategy as illustrated by the record month of September and Q3 2025 production increasing by 32% year on year. Importantly, production has been steady across all our plants, putting us on track for a crystalline iodine production range of 400-440 MT for the second half of the year, and ultimately, further full-year growth.

"With production at IO#11 commencing in July, the Company has met its target of building one new plant each year over the past three years. With negotiations for IO#12 now in the later stages, we expect to continue the delivery of a new plant for the fourth year running.

"With iodine prices remaining high and demand for Iofina's products only getting stronger, the Board is excited by the current outlook for the rest of the year and into 2026."

Enquiries:

Iofina plc

Dr. Tom Becker

CEO & President

Tel: +44 (0)20 3006 3135

Nomad & Broker:

Canaccord Genuity Limited

Henry Fitzgerald-O'Connor/Harry Rees

Tel: +44 (0)20 7523 8000

Financial PR and Media Contact:

Yellow Jersey PR Limited

Charles Goodwin/Shivantha Thambirajah

Tel: +44 (0)7747 788 221/+44 (0)7983 521 488

About Iofina:

Iofina plc (AIM: IOF) is a vertically integrated company that specialises in the production of Iodine and the manufacturing of specialty chemical products. Iofina is the second largest producer of iodine in North America and operates the manufacturing entities Iofina Resources and Iofina Chemical.

LEI: 213800QDMFYVRJYYTQ84

ISIN: GB00B2QL5C79

Iofina Resources

Iofina Resources develops, builds, owns, and operates iodine extraction plants using Iofina's WET® IOsorb® technology. Iofina operates eight IOsorb® plants in Oklahoma and consistently uses technology and innovation to improve and expand its operations.

Iofina Chemical

Iofina Chemical has manufactured high-quality halogen speciality chemicals derived from raw iodine, as well as non-iodine-based products. Iofina Chemical celebrated its 40^th anniversary in 2023 as a preeminent halogen-based specialty chemicals company.

www.iofina.com