International Greetings, the gift packaging, stationery and gifts group, announced further expansion in the US on Monday, giving its share price a strong lift.The Hatfield-based firm has begun supplying the largest drugstore chain in the US, giving it access to a 7,900-store network in the world's biggest economy.It has also partnered with what's described as the US's "fastest growing chain of natural foods supermarkets" and the "largest retailer" in Latin America with its new Papercraft product.International Greetings' Chief Executive Paul Fineman said he was confident the company now had a "strong platform" to strengthen market share.By 10:27, the group's stock price had lept 11.8%.BS