Thorrold said British sugar giant Tate & Lyle, which bought a 12 per cent stake in BioVittoria last year, had played an important role.
"Through our partnership with Tate & Lyle we have been able to offer McNeil great ingredient innovation, backed by our unique, world-class monk fruit supply chain."
Thorrold said Nectresse would need to gain regulatory approval before it could be sold in New Zealand.
Meanwhile, he said BioVittoria - which was forced to abort an attempted listing on the NZX in 2009 due to a lack of market support - might have another attempt at going public. But he said volatile market conditions meant now was probably not the best time.
"We need to deliver liquidity to our shareholders at some point but the timing of that needs to be right."
BioVittoria's other investors include ACC, Stephen Tindall's K1W1 fund and the Government-backed New Zealand Venture Investment Fund.
MONK FRUIT
* A small green melon which has been cultivated for many hundreds of years.
* The pulp of the fruit is concentrated into a natural additive that is up to 300 times sweeter than sugar and can be used in a range of consumer goods.
* As well as being used for manufacturing sweeteners, the fruit also has applications in traditional Chinese medicine.
* Hamilton-based BioVittoria manufactures its extract in the southern Chinese city of Guilin and has a 3000-member monk fruit grower network.