Holding(s) in Company

10 March 2020

TR-1: Standard form for notification of major holdings

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:ii STM Group plc
2 Reason for the notification(please tick the appropriate box or boxes):
An acquisition or disposal of voting rights √
An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached
An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments
An event changing the breakdown of voting rights
Other (please specify):
3. Full name of person(s) subject to the notification obligation:iii Septer Limited
4. Full name of shareholder(s) (if different from 3.):iv Septer Limited
5. Date of the transaction and date on which the threshold is crossed or reached:v 9thMarch 2020
6. Date on which issuer notified: 10thMarch 2020
7. Threshold(s) that is/are crossed or reached:vi, vii Below 11%


8. Notified details:
A: Voting rights attached to sharesviii, ix
Class/type of shares

if possible using
the ISIN CODE		 Situation previous to the triggering transaction Resulting situation after the triggering transaction
Number
of
Shares		 Number
of
Voting
Rights		 Number
of shares		 Number of voting
rights		 % of voting rightsx
Direct Directxi Indirectxii Direct Indirect
6,850,000 6,850,000 6,450,000 6,450,000 10.85%
Ordinary
B: Qualifying Financial Instruments
Resulting situation after the triggering transaction
Type of financial instrument Expiration datexiii Exercise / Conversion Periodxiv Number of voting rights that may be acquired if the instrument is exercised/ converted. % of voting rights
C: Financial Instruments with similar economic effect to Qualifying Financial Instrumentsxv, xvi
Resulting situation after the triggering transaction
Type of financial
instrument		 Exercise price Expiration datexvii Exercise/
Conversion periodxviii		 Number of voting rights instrument refers to % of voting rightsxix, xx
Nominal Delta
Total (A+B+C)
Number of voting rights Percentage of voting rights
6,450,000 10.85%


9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:xxi
Proxy Voting:
10. Name of the proxy holder:
11. Number of voting rights proxy holder will cease to hold:
12. Date on which proxy holder will cease to hold voting rights:
13. Additional information:
14. Contact name: Timothy J Revill
15. Contact telephone number: 07781 162852