China's top economic planner approved infrastructure projects valued at 75 billion yuan ($12 billion), in an effort to stabilize slowing economic growth.
The travel time between Beijing and Guangzhou will be shortened eight hours next month, when the high-speed railway starts operating.
A new high-speed railway connecting Zhengzhou and Wuhan opened on Friday morning, easing traffic pressure ahead of a boom in passenger numbers during the coming National Day holiday.
A faster way of travel but with higher cost, high-speed rail in China continues to divide opinion.
CSR said its subsidiary firm has secured a contract worth $400m to supply freight electric locomotives to South African logistics firm Transnet.
CCECC recently signed a supplementary contract with the transportation department of Nigeria to modernize the country’s railway system using an investment of $1.487 billion.
China's top economic planning agency has approved 25 urban rail projects that could be worth more than 800 billion yuan ($126.98 billion).
China's top economic planner announced the approval of 25 new urban rail transit and intercity rail line projects with an investment of over 800 billlion yuan.
The Ministry of Railways has raised its target for railway construction spending this year to 496 billion yuan ($78 billion) from 470 billion yuan.
The Qinghai-Tibet Railway has passed safety and environmental tests and brought economic prosperity to formerly inaccessible Tibetan areas.
Construction workers on Tuesday laid the last piece of a railway that will link Southwest China's Yunnan province with the ASEAN.
China increased its planned 2012 spending on railway infrastructure for the second time this month as the government invests more to bolster its slowest economic growth in three years.
Experts are concerned that the construction of subway could strain the resources of some city governments and plunge them heavily into debt.
China will have established a high-speed railway network covering almost all its cities with a population of more than 500,000 by 2015.
China's railways have handled six million passengers daily since the start of this month, when the peak summer travel season began.
The Hanyi Railway, a section of a major high-speed rail corridor between Shanghai and Southwest China's city of Chengdu, opened on Sunday.
China's railways carried nearly 25 million passengers during the three-day Dragon Boat Festival holiday, up 7.5 percent year-on-year.
Bids for railway contracts in China will open to local markets soon to ensure the transparency and fairness of the bidding process and prevent power-for-money deals.
As the bidding process for railway projects is expected to be more transparent, experts doubt effectiveness of efforts to tackle a private funding shortage.
Investment in China's railways saw a significant drop in the first four months of the year, new data from the Ministry of Railways (MOR) showed.