Mateusz Morawiecki made the declaration at a news conference in Warsaw on Friday, public broadcaster Polish Radio's IAR news agency reported.
The prime minister-designate said that "the members of the new Cabinet will be named on Monday."
Morawiecki stated that "talks are underway with lawmakers from several groupings," adding that later on Friday he would meet with representatives from the far-right Confederation.
He said the new government would represent a "cross-party coalition for Poland," an effort that could "improve the lives of the Polish people."
Morawiecki declared that "strengthening Poland's security" would be a priority for the new Cabinet, and that spending on defence would reach 4 percent of GDP.
He added that the new government would enact "green-friendly policies," such as new projects in photovoltaics, thermal overhaul of public facilities and expansion of biogas plants, while also making efforts to protect Poland's national heritage, state news agency PAP reported.
Earlier this week, Morawiecki appealed to the country's opposition parties to back his new Cabinet, saying it could deliver their proposals in areas such as social policy, healthcare and education.
He at the time mentioned seniority pensions, new services for seniors, boosting education spending to 6 percent of GDP and science spending to 2 percent of GDP, among other plans.
Poland to appoint new gov't
Poles elected a new set of 460 MPs and 100 senators when they went to the ballot box last month.
Polish President Andrzej Duda this month named Morawiecki, who has led Poland's government since 2017, as prime minister-designate, tasking him with forming a new Cabinet.
The ruling conservative Law and Justice party won Poland's October 15 election, but lost its parliamentary majority and looks unlikely to stay in power for a third consecutive term.
Meanwhile, opposition leader Donald Tusk has already chosen most candidates for ministerial roles in his future Cabinet, according to the Rzeczpospolita newspaper.
A bloc of opposition parties led by Tusk's Civic Coalition last week secured a resounding victory in Poland's new parliament during its first key vote to elect a house Speaker.
On November 10, these opposition groups, which also include the rural-based Polish People's Party (PSL), the centre-right Poland 2050 group and the Left party, signed an agreement to form a coalition government, pledging to restore the rule of law, promote green energy and relax abortion rules, among other policies.
Tusk was Poland's prime minister from 2007 to 2014.
(pm/gs)
Source: IAR, PAP