GlaxoSmithKline Plc Chief Executive Officer Andrew Witty

GlaxoSmithKline Plc Chief Executive Officer Andrew Witty

Simon Dawson/Bloomberg

GlaxoSmithKline Plc Chief Executive Officer Andrew Witty said, “We are likely to see some impact to our performance in China as a result of the current investigation, but it is too early to quantify the extent of this.”