DUBAI, Sept 17 (Reuters) – The United Arab Emirates could invest at least a further one billion pounds ($1.4 billion) in the United Kingdom this year after pledging 10 billion pounds this week to its investment partnership with the British government. “The expectations are high that it will reach a two billion (pound) watermark this year,” Penney said of the UAE investment in an online interview. The oil-rich Gulf state on Thursday pledged to invest 10 billion pounds in British clean energy, infrastructure, technology and life sciences, expanding its “sovereign investment partnership” with the UK government announced in March. Over 1.1 billion pounds has been invested since then. The UAE this month said it would pursue comprehensive economic agreements with eight countries including Britain.