Holding(s) in Company

NOTIFICATION OF MAJOR HOLDINGS (to be sent to the relevant issuer and to the FCA in Microsoft Word format if possible)i

1a. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attachedii:

LightwaveRF plc

1b. Please indicate if the issuer is a non-UK issuer (please mark with an "X" if appropriate)

Non-UK issuer

2. Reason for the notification (please mark the appropriate box or boxes with an "X")

An acquisition or disposal of voting rights

X

An acquisition or disposal of financial instruments

An event changing the breakdown of voting rights

Other (please specify)iii:

3. Details of person subject to the notification obligationiv

Name

Committed Capital Group

City and country of registered office (if applicable)

London, United Kingdom

4. Full name of shareholder(s) (if different from 3.)v

Name

See box 9 for further details

City and country of registered office (if applicable)

London, United Kingdom

5. Date on which the threshold was crossed or reachedvi:

16 August 2019

6. Date on which issuer notified (DD/MM/YYYY):

25 September 2019

7. Total positions of person(s) subject to the notification obligation

% of voting rights attached to shares

(total of 8. A)

% of voting rights through financial

instruments(total of 8.B 1 + 8.B 2)

Total of both in % (8.A + 8.B)

Total number of voting rights of

issuervii

Resulting situation on the date on which threshold was crossed or reached

35.90%

35.90%

120,818,829

Position of previous notification (if

applicable)

N/A

8. Notified details of the resulting situation on the date on which the threshold was crossed or reachedviii

A: Voting rights attached to shares

Class/type ofshares

ISIN code (if possible)

Number of voting rightsix

% of voting rights

Direct

(Art 9 of Directive 2004/109/EC) (DTR5.1)

Indirect

(Art 10 of Directive 2004/109/EC) (DTR5.2.1)

Direct

(Art 9 of Directive 2004/109/EC) (DTR5.1)

Indirect

(Art 10 of Directive 2004/109/EC) (DTR5.2.1)

Ordinary shares GB00BKJ9BV58

43,376,337

35.90%

SUBTOTAL 8. A

43,376,337

35.90%

B 1: Financial Instruments according to Art. 13(1)(a) of Directive 2004/109/EC (DTR5.3.1.1 (a))

Type of financial instrument

Expirationdatex

Exercise/Conversion Periodxi

Number of voting rights that may be acquired if the instrument is

exercised/converted.

% of voting rights

SUBTOTAL 8. B 1

B 2: Financial Instruments with similar economic effect according to Art. 13(1)(b) of Directive 2004/109/EC (DTR5.3.1.1 (b))

Type of financial instrument

Expirationdatex

Exercise/Conversion Period xi

Physical or cash

settlementxii

Number of voting rights

% of voting rights

SUBTOTAL 8.B.2

9. Information in relation to the person subject to the notification obligation (please mark the

applicable box with an "X")

Person subject to the notification obligation is not controlled by any natural person or legal entity and does not control any other undertaking(s) holding directly or indirectly an interest in the (underlying) issuerxiii

Full chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held starting with the ultimate controlling natural person or legal entityxiv (please add additional rows as necessary)

X

Namexv

% of voting rights if it equals or is higher than the notifiable threshold

% of voting rights through financial instruments if it equals or is higher than the notifiable threshold

Total of both if it equals or is higher than the notifiable threshold

Committed Capital Group

35.90%

35.90%

Components of which are:

Legally owned by Mainspring Nominees (8) Limited and controlled by Committed Capital

Financial Services Ltd (100%

subsidiary of Committed Capital Ltd)

33.40%

33.40%

Legally owned by MNL Nominees Limited and controlled by Committed Capital Ltd, parent of the Committed Capital Group)

2.50%

2.50%

10. In case of proxy voting, please identify:

Name of the proxy holder

 See section 4

The number and % of voting rights held

The date until which the voting rights will be held

11. Additional informationxvi

The indirect voting rights under item 9. relate to shares held in the named nominee companies, and which represent client portfolios subject to investment management agreements with those clients that are managed by the firms named in item 9..

Place of completion

Committed Capital Limited, 150 Buckingham Palace Road, London SW1W 9TR

Date of completion

25 September 2019