Block listing six monthly return

Name of applicant:

Dialight plc

Name of scheme:

The Dialight Performance Share Plan ("PSP"), the Dialight Annual Performance Bonus Plan ("APBP"), and the Dialight plc 2014 Sharesave Plan ("Sharesave")

Period of return:

From:

15 September 2017

To:

15 March 2018

Balance of unallotted securities under scheme(s) from previous return:

PSP - 101,394

APBP - 67,634

Sharesave - 125,717

Plus: The amount by which the block scheme(s) has been increased since the date of the last return (if any increase has been applied for):

PSP - nil

APBP - nil

Sharesave - nil

Less: Number of securities issued/allotted under scheme(s) during period (see LR3.5.7G):

PSP - nil

APBP - nil

Sharesave - 1,193

Equals: Balance under scheme(s) not yet issued/allotted at end of period:

PSP - 101,394

APBP - 67,634

Sharesave - 124,524

Name of contact:

Chris Fussell

General Counsel and Company Secretary

Telephone number of contact:

0203 058 3546