Mr Helu who has been an avid promoter of boys scouting in Tonga for many years, is the first recipient of such a decoration.
The Prime Minister also offered words of encouragement to three local high school students who will represent the Tongan Scout Association at the forthcoming 22nd World Scout Jamboree that will be held in Kristianstad, Sweden from 28 July to 7 August.
Lord Tu'ivakano said that, "it is the youth from Tonga's scouts and girl guides who makes up of Tonga's responsible men and women of today."
It is expected that around 38,000 Scouts from around the world will attend this Jamboree experience which will include participation in subcamp life, module activities, arena events as well as getting involved in raising funds and sponsorships for scouting recipients worldwide.
Tonga's representing scouts are Tevita Taufaloa (St Andrew High School), Russell Makihele (Liahona High School) and Lakei Folau (Tonga College).
"Making the most of such an opportunity should encourage Tonga's youth to further develop in their skills and to be proud of the responsibility given in representing Tonga", Hon. Tu'ivakano added.
Tonga is one of 29 overseas branch of The Scouting Association, which allows the Kingdom to be a member of the World Organization of the Scout Movement.
Also attending the ceremony and showing their support are Susi Pasikala and Halaevalu Palu of The Girl Guides Association of Tonga. The Girl Guides which first began in 1952 has now served up to 204 members.
Issued by the: Ministry of Information and Communications, Nuku'alofa, 2011. (Photos: Hiromichi Suzuk)