The Korean banking sector is making a great effort to support the Hyundai business group, with Cho Hung Bank (CHB) saying Friday that it would extend for another three months its offer of a W50-billion overdraft limit for Hyundai Engineering & Construction (HEC) due to expire the same day. Hanvit Bank have also extended the June 29 maturity date of HEC-issued commercial papers to the end of the next quarter.