Transport minister Dietrich signed off on the first two of six projects included in the country's US$30bn PPP program.
BNamericas spoke with the CEO of the Chinese-Chilean consortium that presented the project about the recent uncertainty surrounding the train and its significance for the country.
Some of the country's main highways were blocked by demonstrators during the protests.
Smaller players become more relevant as major conglomerates lose out due to their role in corruption scandals.
The upcoming administration will also have to guarantee better competition in a market still dominated by América Móvil and Televisa.
As a result of the better performance, Moody's reviewed the company's rating, improving the outlook to positive.
The sovereign fund acquired Sanepar's preferred shares