Kent business chiefs are calling on Chancellor Jeremy Hunt to work in partnership with firms to develop a sustainable growth plan for the country – including a reform of business rates. In addition, it is demanding the government remove uncertainty over key transport schemes for the county – among them the multi-billion pound Lower Thames Crossing. The spring Budget is due to be delivered in the Commons next Wednesday and could be the last fiscal set-piece before a General Election is called. Now the Kent Invicta Chamber of Commerce, which represents firms across the county, has joined its par…