The Ministry of Railways disclosed details of the tender for its costly online ticketing system on its website on Thursday evening after the system crashed again, angering netizens.

The ministry statement said the public tender was won by Taiji Computer Co Ltd and Tsinghua Tongfang Co Ltd, and notarized by Beijing Fangzheng Notary Public Office.

The online ticketing system, www.12306.cn, cost 330 million yuan ($49 million) after 10 years of research and development, the Xinhua News Agency reported.