expanded into the United States through the purchase of Atlantic Engineering Services, a structural engineering firm. Actavo was also involved in the installation of fibre networks for Digicel in the Caribbean. Topaz Energy In December 2013, O'Brien purchased €300 million in debt owed by Topaz Energy to the Irish Bank Resolution Corporation. In December 2014, Topaz's parent company, Kendrick Investments, announced it would buy all of Esso's Irish operations. In December 2015, Alimentation Couche-Tard, a Canadian convenience store company, announced that it planned to buy Topaz. The sale was completed in February 2016; Topaz had more than 2,000 employees and close to 35% of the consumer market in Ireland at the time of the sale. Davos and bank directorships O'Brien has attended the World Economic Forum's annual winter meeting in Davos, Switzerland, alongside other billionaires like Bill Gates and George Soros. In 2000, O'Brien became a director of the Bank of Ireland, and in September 2005, he was named a deputy governor of the bank. In September 2006, he resigned as both deputy governor and as a member of the bank's court (board). O'Brien reportedly resigned due to increased demands related to his international business interests. Football Between 2008 and 2016, O'Brien gave the Football Association of Ireland (FAI) as much as €12 million to help pay the salaries of senior officials within the organisation, including Giovanni Trapattoni. In 2018, O'Brien was named Honorary Life President of the FAI. In 2006, O'Brien purchased a 2.82% stake in Glasgow-based Celtic F.C. from a former manager of the club, Martin O'Neill. As of June 2018, O'Brien reportedly had increased his ownership to 13%. Other business interests In 1998, O'Brien purchased Planal SA, the holding company for the Quinta do Lago golf resort in Portugal. Moriarty Tribunal In 1997, the Moriarty Tribunal was established to look into allegations against two Irish politicians, Charles Haughey and Michael Lowry. After 14 years, the Tribunal's final report found, among other things, that Lowry, Ireland's then energy and communications minister, assisted O'Brien in his bid to secure a mobile phone contract for Esat Digifone. The tribunal found that this happened after Fine Gael received a $50,000 donation from O'Brien via a circuitous route, although the tribunal also acknowledged that the money was not intended as a payment. However, because the Tribunal was not a court of law, its findings were legally "sterile". In 2018, Michael Lowry won