By Tom Pfeiffer RABAT (Reuters) - Moroccan industrial group Delta Holding was open to the idea of floating more of its shares as it eyes investment opportunities abroad, its managing director said. "We are competitive and today we have no timidity in saying that our potential can be exported to Europe as well as Africa," said Adel Ben Hayoun, without giving details of specific opportunities. Hayoun, managing director for resources, said last year's initial public offer helped the company to finance its development, and it could float a further stake on the Casablanca stock exchange. "As a group we are very open to the world and to new opportunities. If there is a particular interest in increasing this part on the Casablanca bourse, then we are effectively completely open to the idea," he said. The company is 72 percent owned by Morocco's Fahim family with the remaining shares freely floated or held by financial institutions. Delta groups a plethora of firms that build and maintain road, port and water infrastructure, make industrial gases, ethanol and metal products and develop property in the north African country. Growing state spending in public works projects has allowed Delta to build its order book despite the economic downturn, it said. Its order book grew 19 percent in the first half of 2009 to 2.75 billion dirhams. Hayoun said Delta's first-half order book represented the equivalent of one year of sales. The company gets more than half of its revenue from infrastructure-related activities. Delta's shares closed on Wednesday at 71.1 dirhams, taking their gain this year to 15 percent, compared to a 6.4 percent drop by the Casablanca benchmark MASI index (.MASI>.