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Comment on "Surprise as Mexico rail contract withdrawn" (China Daily, Nov 10)

That China's high-speed trains are among the best in the world prompted Mexico to sign a deal with China to build a high-speed railway. But within days, Mexico annulled the contract because no other company or country had bid for the project. Now, the Mexican president is under political pressure to reopen the bid.

Some people believe that China has been taking advantage of being a G20 member to strike commercial deals with other countries, something which other leading economic powers will not allow.