[1] Ron Crocombe described him in 2007 as "perhaps the wealthiest entrepreneur and largest private employer in Vanuatu, and many say the most politically influential [...] citizen".
In 1991, when the party was about to split, Thân supported its founder and then-leader, the first Prime Minister of Vanuatu, Walter Lini.
Later that year, when Lini was ousted from the leadership of the Vanua'aku Pati, and founded the National United Party, Thân was a prominent member.
Specifically, the party emphasized "the need to develop rural employment opportunities, provide confidence to business and invest in primary industries".
[11][12] His sister, Thitam Goiset, is also involved in customary politics, being reportedly the "president" of the Nagriamel movement before her appointment as Vanuatu's ambassador to Russia in December 2011.
[13] On 16 December 2000, the headline story of the Vanuatu Weekly Hebdomadaire highlighted Thân's "growing generosity", as he planned to "invest about 500 million vatu" in creating a residential area in Tagabe.