Liwimbi was General Manager of the privately owned Ethanol Company of Malawi (ETHCO), which makes Ethanol from sugar cane. In October 2007, his company and Malawi's department of Science and Technology jointly unveiled the first set of imported Brazilian-made 'flex-fuel' vehicles in a ceremony in Balntyre. In December 2007, Liwimbi said: "Government should plan to increase production if the whole project is to be a success. With increased production from sugarcane molasses, capacity could reach up to 30 million litres per [cane-growing] season".
Liwimbi was elected for Nkhotakota North-East in the May 2009 elections, on the Democratic Progressive Party platform. He was appointed Deputy Minister of Development Planning and Cooperation in the cabinet sworn in on 15 June 2009. He retained this position through the cabinet reshuffle of 9 August 2010. In August 2010, Liwimbi stated that 40% of Malawi's grain was lost in the post-harvest period, and announced government plans to construct grain silos in Mzuzu with capacity for 25 thousand metric tones of grain.
- "Malawi endorses ethanol-fuelled cars". Biomass 4 Africa. Retrieved 2011-03-04.
- "Malawi Government pushes green vehicles". Science in Africa. December 2007. Archived from the original on 27 September 2011. Retrieved 2011-03-04.
- "Malawi Election 2009 Results". African Elections Project. Retrieved 2011-03-04.
- "Malawi’s 43 member cabinet list as unveiled by President Mutharika". Nyasa Times. 17 June 2009. Archived from the original on 10 February 2011. Retrieved 2011-03-03.
- "MALAWI CABINET AS OF AUGUST 9, 2010" (PDF). Government of Malawi. Retrieved 2011-03-03.[permanent dead link]
- GREGORY GONDWE (9 August 2010). "Tackling Post Harvest Losses". Zodiac Online. Retrieved 2011-03-04.[permanent dead link]