TREATT PLC

Board/Management Information • Jun 1, 2020

Our ref: PABH/NS/RH/221199/yac

The Directors Treatt plc Northern Way Bury St Edmunds Suffolk IP32 6NL

Abbotsgate House Hollow Road Bury St Edmunds Suffolk, IP32 7FA United Kingdom

T +44 (0)1284 763311 F +44 (0)1284 704203

rsmuk.com

29 May 2020

Dear Sirs

Notice of resignation - Treatt plc - company number: 01568937

We hereby give notice of our resignation as auditors of your company with effect from 29 May 2020.

The reason for ceasing to hold office auditor of the company is the competitive tender process by Treatt plc in which RSM UK Audit LLP was not invited to participate due to length of audit tenure.

There are no reasons or matters connected with our resignation which we consider should be brought to the attention of members or creditors of the company.

Yours faithfully

RSM UK Aucht LLP

RSM UK Audit LLP Registration number 3341

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