"When Haroon Lorgat said South Africa was to back it, we had no choice but to abstain from voting. We were banking on South Africa's opposition," Aluthgamage told reporters here.
The Minister said that the SLC Secretary Nishantha Ranatunga consulted him on the phone from Singapore on Lorgat's about turn.
"We never expected that," he added.
Cricket South Africa was originally not in favour of International Cricket Council's structural revamp, but they later welcomed the agreement, terming it as "significantly different" to the original proposals tabled in January.
The proposals were carried with a majority voting in favour of the "Big Three' -- India (BCCI), England (ECB) and Australia (CA).
Aluthgamage, however, said Sri Lanka had noted some positives in the amended plan, such as retaining of the FTP.
Having abstained at the meeting, SLC announced they would further seek a mandate locally to deal with the revised ICC proposals.
