Complex sentence: At the beginning of the establishment, Kowloon Dairy Limited was a very small company with approximately 30 employees, only able to supply the fresh milk to the northern part of the Kowloon Peninsula.
Split into simpler sentences: At the beginning of the establishment, Kowloon Dairy Limited was a very small company. There were only approximately 30 employees working at the company and they were only able to supply the fresh milk to the northern part of the Kowloon Peninsula.