Jilin HSL construction work begins, China August 8, 2017 | Asia Pacific News Construction work has started on the 113.5-km long Dunhua-Baihe high-speed line (HSL) in Jilin province of China. The line is scheduled to open in 2021 at an investment of about USD 1.9 billion.  ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password