Acting president Datuk Wilfred Madius Tangau in this respect reiterated Upko's commitment to work hard and further strengthen the BN coalition.
"Upko wants to be part and parcel of this noble journey," he said after leading the party's Political Bureau to pay a courtesy call on Datuk Seri Musa Haji Aman at his official residence, the Seri Gaya here Monday.
"Upko had informed the country leadership about this, and today, we had the opportunity to personally convey such to our Chief Minister," he said.
Tangau, who is also Tuaran MP, concurred with the Chief Minister that there was an urgent need to consolidate the ruling coalition in Sabah considering the BN performance in the general elections last year.
Sabah BN won 22 of the 25 Parliamentary seats and 48 of the 60 State seats then.
Upko itself won the Parliamentary seats for Tuaran, Ranau and Putatan but lost in Penampang.
It successfully defended the State constituencies of Paginatan, Nabawan, Kuamut and Kuala Penyu but was defeated in Moyog and Bingkor.
"The Chief Minister mentioned this to us just now and Upko appreciates his message," said Tangau, adding, "there and then, we pledged to work harder to enhance the people's support to the BN particularly from the Kadazandusun, Murut and native communities as evident in the many programmes we have done immediately after the polls in May last year."
Citing an example, Tangau said, the Penampang division headed by Upko Secretary General Datuk Donald Mojuntin had since last year made indepth studies about their defeats.
"Upko is also engaging the people in various activities in the district," said Tangau.
"Donald informed me the party is overwhelmed with positive response including from those who were openly campaigning against us last year. Upko Penampang, and Upko as a whole, is getting stronger by the day, and this augurs well for BN as a whole."
Apart from Tangau and Mojuntin, the delegation on Monday comprised vice presidents Datuk Siringan Gubat, Senator Datuk Dr Lucas Umbul and Datuk Seri Wences Angang, information chief Albert Bingkasan, deputy secretary general Georgina George, deputy youth chief Kennedy Datuk John Angian, youth organising secretary Felix Joseph Saang and Komulakan chief Ewon Benedick.