SHANGHAI/SYDNEY (Reuters) -Lanvin Group, the luxury fashion company owned by Chinese conglomerate Fosun International Ltd, said on Wednesday it plans to list in New York by merging with a special purpose acquisition company (SPAC) and aims to raise up to $544 million to fund its global expansion ambitions. Lanvin Group, which manages iconic brands such as Lanvin, Sergio Rossi, Wolford, St. John Knits, and Caruso, has agreed to combine with a U.S.-listed ‘blank cheque company’ affiliated to Primavera Capital Group, an investment firm founded by former Goldman Sachs Greater China Chairman Fred H…