Holding(s) in Company

21 July 2017

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES i

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 x
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 20 July 2017
6. Date on which issuer notified: 21 July 2017
7. Threshold(s) that is/are crossed orreached: vi, vii Below 12%

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
IM00B1S9KY98 7,350,000 7,350,000 6,850,000 6,850,000 11.53%

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
6,850,000 11.53%

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: 01481 239207