Danone is increasing its interests in South America with a stake in Galletas Noel , the leading biscuit maker in Colombia. Danone is upping its stake from 20% to 30% from June. The deal will cost the companye US$18m. The French food group paid $24m in 1999 for its original stake in the company, which has a 52 % market share in Colombia and exports to 42 countries, mainly in Latin America and the Caribbean.