* Bucharest stocks at 9-year high, Banca Transilvania record high * Budapest shares set record high again, driven by OTP Bank * Warsaw stocks hits 18-month high, Prague highest since Dec 2015 * Czech stocks shrug off plan for higher tax for big companies By Sandor Peto BUDAPEST, Feb 21 Bucharest stocks hit a 9-year high on Tuesday, driven by surging Banca Transilvania as bank stocks fuelled a rally in Central European equit LAGOS, Feb 21 Nigeria wants to borrow at least $1 billion from the World Bank and to sign within months for a $1.3 billion loan from China to fund railway projects, Finance Minister Kemi Adeosun said on Tuesday.