On 23 September 2022, the boards of directors of RPS Group plc, Tetra Tech and Tetra Tech Inc. announced that they had agreed the terms of a recommended cash offer pursuant to which Tetra Tech will acquire the entire issued and to be issued share capital of RPS, to be effected by means of a Court-sanctioned scheme of arrangement under Part 26 of the Companies Act 2006. The circular in relation to the Scheme was published on 11 October 2022. On 19 January 2023, RPS and Tetra Tech announced that the High Court of Justice in England and Wales had sanctioned the Scheme at the Court Hearing held on 19 January 2023.

As the Scheme has now become effective, RPS duly announces that Kenneth Lever, Allison Bainbridge, Elizabeth Peace, Michael McKelvy and John Douglas have tendered their resignations as directors with effect from 24 January 2023 and will simultaneously stepdown from the RPS Board. Judith Cottrell will remain on the RPS Board. In addition, William Brownlie and Andrew Gillespie will be nominated by Tetra Tech and appointed to the RPS Board with effect from January 23, 2023.