The firm said it was expanding to meet soaring global demand for molded fiber and corrugated cardboard alternatives to single-use plastic packaging.
The new facilities will create more than 120 jobs at the company’s site in Glasgow. Roles include engineers, product designers and machine operators.
Cullen currently operates 15 production lines that produce 470 million items a year. The expanded manufacturing facility is expected to see Cullen double its output.
Its products include coffee shop cup carriers, healthcare products made of molded fiber and protective packaging for goods such as fine wines and high-end electronics.
In a statement, Cullen said its exports had tripled in the last five years. It now supplies firms in 34 countries in the medical, food and drink, produce, retail and industrial sectors.
Cullen owner David MacDonald said: “The world’s biggest companies, across multiple industries, are looking to molded fiber to solve many of their sustainability challenges faster than seems possible.”