sˈɪns ðə nˈaɪntiːnhˈʌndɹɪd nˈaɪnti sˈɛnsəs, ɡwɑːsˈoʊpə hɐz ɡˈeɪnd ɐ hˈɛlθ sˈɛntɚ, wˌaɪl kjˈʊluːmˌædaʊ hɐz ɡˈeɪnd ɐ mˈiːdiəmsˈaɪzd tˈɪmbɚ kˈʌmpəni mˈɪlni bˈeɪ lˈɔɡɪŋ ænd ɐ mˈaɪnɪŋ ɛksploːɹˈeɪʃən kˈæmp bˌiːˌeɪtʃpˈiː.
Since the 1990 census, Guasopa has gained a health center, while Kulumadau has gained a medium-sized timber company (Milne Bay Logging) and a mining exploration camp (BHP).