The federal government will present its mid-term review of the 11th Malaysia Plan in September, said Economic Affairs Minister Azmin Ali.

The 2018 Budget passed in Parliament will be maintained, for the time being, he said after clocking-in at his new ministry today.

"The 2018 Budget will remain, but (we) need to look into several projects which were issued with a letter of acceptance (surat setuju terima) due to lack of transparency, and projects (decided) in a hasty manner," he said.

Azmin added that the government will also review certain projects which have been accepted and approved via the tender process.

"We want to see all mega projects approved by the previous administration. We have to revisit and renegotiate the terms."

They include the East Coast Rail Link (ECRL) and Kuala Lumpur-Singapore High-Speed Rail (HSR), Azmin said.

However, he added, matters pertaining to ECRL and HSR were not discussed in his briefing with the Economic Planning Unit (EPU) earlier today.

When asked if the government would call the concessionaires of ECRL and HSR, he said: "That depends."

"Let me sit down and discuss with the relevant authorities and agencies before we decide the next course of action," he said.

Besides the mega projects, he said, the government will also look into the various basic infrastructure projects, which directly impact the people.

The previous administration has embarked on a number of mega-projects which rely heavily on borrowings from China, most prominently, the East Coast Rail Line (ECRL) project.

Pakatan Harapan leaders and economists have questioned the need and viability of the RM55 billion project, the most ambitious and expensive public infrastructure project ever.

Once completed in 2024, the ECRL will link Tumpat with Kuantan and Port Klang.

The 350km HSR project was signed in December 2016 and expected to be completed by 2026.

While the Finance Ministry revealed in 2016 that the HSR would cost RM50 billion to RM60 billion, some reports have claimed that the bill could go as high as RM70 billion.