EQT AB has made a fourth and final bid to acquire Intertek Group Plc as the British product-testing company comes under increasing pressure from its investors to pursue a deal.

The Swedish private equity firm on Tuesday offered £60-a-share in cash for Intertek, which values the London-listed company at around £9.2 billion ($12.5 billion). Under EQT’s offer, shareholders would also receive a dividend of up to £1.077, as announced by Intertek in March.