The 55-km Hong Kong-Zhuhai-Macao Bridge (HZMB), comprising the 12km Hong Kong Link Road, 29.6km Main Bridge and 13.4km Zhuhai Link Road, is the longest bridge-cum-tunnel sea crossing in the world. HZMB links major cities in the Pearl River Delta within a three hours' commute from Hong Kong. It takes only 40 minutes to travel 42km from Hong Kong Port to Zhuhai Port and Macao Port.

In 2017, IEC designed and manufactured modular joints of type SB-240 and SB-320 conforming to AASHTO LRFD for the Hong Kong part of HZMB. All joints are hot-dip galvanized for corrosion protected.