Pipeline isolation specialist STATS Group has appointed two new directors, as it gears up for major international expansion, following a £7.8 million equity investment. Former Expro executive chairman Graeme Coutts takes on a non-executive role in what is his first appointment since retiring from the global oilfield services company last year. Leigh Howarth, former managing director of Petrofac Training Services, has joined the STATS Group board as chief financial officer. Both directors were introduced to STATS by the Business Growth Fund (BGF)…