GlaxoSmithKline PLC plans to change its auditor.

The pharma giant will seek shareholder approval at its 2018 annual meeting to appoint Deloitte LLP as its new auditor.

The company's current auditor PricewaterhouseCoopers will continue to perform auditing activities until Dec. 31, 2017.

The decision follows an audit tender undertaken by the company's Audit & Risk Committee.