NIOX GROUP PLC — Director's Dealing 2026

May 5, 2026

National Storage Mechanism | Additional information

RNS Number : 1132D

Niox Group PLC

05 May 2026

NIOX Group plc

("NIOX" or the "Company")

Grant of SAYE options

5 May 2026 

NIOX Group plc (AIM: NIOX) announces that it has today launched its 2026 Save As You Earn Scheme (the "2026 SAYE Scheme") for all eligible UK employees, offering a savings plan over three years.

Employees were invited to subscribe for a grant of options ("Options") over the Company's Ordinary Shares ("Ordinary Shares") at an exercise price of 45.02 pence per share in accordance with the terms of the 2026 SAYE Scheme. This represents a discount of 20% from the average mid-market closing price for an Ordinary Share on the three business days from 2 April 2026 to 8 April 2026 prior to the invitation made to all eligible employees.

A total of 99,042 Options have been granted under the 2026 SAYE scheme, representing 0.02% of the Company's current issued share capital. 40,426 of these Options were granted to Persons Discharging Managerial Responsibility ("PDMRs") as outlined below:

	Number of Options
Jonathan Emms	40,426
	40,426

Additional disclosures in relation to PDMR dealing are included at the end of this announcement.

For further information, please contact:
NIOX Group plc Jonathan Emms, Chief Executive Officer Sarah Duncan, Chief Financial Officer Rebecca Clayton-Wherity, Company Secretary	+44 (0) 3303 309 356
Singer Capital Markets (Nominated Adviser and Broker) Jen Boorer / James Fischer	+44 (0) 20 7496 3000

Notification and public disclosure of transactions by persons discharging managerial responsibilities and persons closely associated with them

1.        

Details of the person discharging managerial responsibilities / person closely associated

a.         

Name

Jonathan Emms

2.         

Reason for the notification

a.         

Position/status

Chief Executive Officer

b.         

Initial notification

/Amendment

Initial notification

3.         

Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor

a.        

Name

NIOX Group plc

b.        

LEI

2138006YAT138TOGA556

4.         

Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted

a.         

Description of the

Financial instrument, type of instrument

Identification code

Ordinary Shares of 0.08p each

GB00BJVD3B28

b.         

Nature of the transaction

Grant of share options under the 2026 SAYE Scheme over Ordinary Shares in NIOX Group plc

c.         

Price(s) and volume(s)

1.  

Exercise Price(s)	Volume(s)
45.02p	40,426

d.         

Aggregated information

·      Aggregated volume

·      Price

n/a

e.         

Date of the transaction

5 May 2026

f.         

Place of the transaction

Outside a trading venue

This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact [email protected] or visit www.rns.com.

RNS may use your IP address to confirm compliance with the terms and conditions, to analyse how you engage with the information contained in this communication, and to share such analysis on an anonymised basis with others as part of our commercial services. For further information about how RNS and the London Stock Exchange use the personal data you provide us, please see our Privacy Policy.

END

DSHEELFBQELLBBB