Three current and former lawyers at Norton Rose Fulbright’s Australian unit are among those facing a potential five-year ban from doing business in Papua New Guinea, for failing to co-operate with the royal commission into a controversial $1.3 billion UBS loan.

The commission’s final report will be tabled in PNG’s parliament on Wednesday, two and half years after it was set up to examine the complex transaction, which resulted in $400 million of losses to the state.