The $4.3 billion budget, approved recently by Prime Minister Hun Sen, allocates $500 million for education.
Earlier this month, the government agreed to raise minimum wage to $140 per month, a figure managers said would damage the industry.
The Asean nations included in the TPP are Brunei, Malaysia, Singapore, and Vietnam.
Corruption can be tackled through education and the reinforcement of Buddhist values, particularly against greed, the expert said.
Meanwhile TPP has struggled to get approval in the US, with significant opposition in Congress, and must be ratified by the 12 nations it now includes.
The figure is lower than the $160 unions had negotiated for, a wage they said was necessary to keep up with the rising cost of living.
Increase of nearly 10 percent was more than manufacturers wanted but far less than workers unions were seeking.
The Trans-Pacific Partnership will lower trading barriers and set commercial rules for 40 percent of the world economy.
Mu Sochua said there are few opportunities for jobs, coupled with land grabs and low wages for jobs that do exist—and this is forcing many Cambodian women to work abroad.
As of June 2015, microfinance institutions lent more than $2 billion, compared to $1.6 billion dollars in 2014, according to the Cambodia Microfinance Association.
Some 41 percent of the population in Cambodia are left behind and still live on less than $2 per day.
The ADB forecasts GDP growth at 7 percent for 2015 and 7.2 percent for 2016.