Public Service Minister Sir Puka Temu told Parliament during question time today.
Sir Puka was responding to question without notice from Chuave MP Wera Mori.
Mori asked why senior public servants negotiating in the Wafi-Golpu Project paid themselves extra allowances amounting over a million kina.
"With no successful completion of the project why were bonus paid?"
Sir Puka said to look into the allegation raised because payment are made after negotiations are completed, but he added that provision does allow for extra payment.
"There are provisions of what we call bonus for certain department heads when they negotiate in major projects.
"These are treasury, finance, labour, mining and justice secretaries.
"These are some key agencies because of the skills and time spent over their normal working time."
Sir Puka added that all claims by the department heads are submitted to the Treasury Department for assessment before payment is done.