Cabinet ministers demand government transparency of Toyota reassurances over Burnaston car plant Nicky Morgan MP is among those calling for transparency over any deal with Toyota Getty Images. The Government should disclose what post- reassurances it offered Japanese carmaker ahead of a £240m ($313m) investment in its English car plant, two parliamentary committee heads said on Monday. On Friday, Reuters cited two sources saying that Britain had helped to secure an investment in the firms Burnaston car plant with a letter reassuring the Japanese carmaker over future trading arrangements. The business ministry has confirmed the existence of a letter but has refused to release it. One of the sources said the letter to Toyota was similar to one sent to Japanese carmaker Nissan last year when it decided to build two new models at its plant in northern England. The previous chairman of parliaments Treasury Select Committee raised questions about the Nissan deal last year. Reuters contacted the new committee chairwoman on Monday for comment on the reported reassurances to Toyota. To provide clarity to the public, as the assurances may cost the taxpayer money, and to other businesses, who are craving certainty to plan for Brexit, the letters should be published immediately, Nicky Morgan said in an emailed statement. It remains to be seen what these assurances could have been that were robust enough for them to invest in the UK, but avoided any obligation to report to parliament, she said. A Toyota spokesman referred to the companys statement from the day of the 16 March investment announcement which said the Government was providing up to £21. 3m in funding for training and research and development. The chairwoman of parliaments business committee, opposition Labour lawmaker Rachel Reeves, said it was unacceptable that the Government had refused to disclose its private reassurances to Toyota. It is vital that the Government is not seen to be cutting sweetheart deals or granting special favours that could undermine our negotiating position, she said in a statement. The Government needs to swiftly develop an open and inclusive strategy when it comes to its Brexit negotiations that offer all sectors the best chance of success when it comes to creating jobs and securing investment. A business ministry spokesman did not immediately respond to a request for comment. Business minister Greg Clark suggested last year that assurances offered to Nissan were available to other firms. The Labour Party said secretive, one-off deals were unfair and showed a lack of coherent strategy. The Government cant go round making individual deals with some companies whilst leaving others out in the cold, said the partys business spokeswoman Rebecca Long-Bailey. A first full round of Brexit negotiations kicked off on Monday in Brussels amid divisions among Prime Minister s ministers over what form Britains exit from the European Union should take. Major car firms are worried about the long-term viability of their British plants and are using their upcoming investment decisions to push for promises to maintain free trade after Britains exit from the EU, which is due to take place in March 2019. Reuters.