Complex sentence: The governor refused for fear that the Chinese would discontinue supplying food and other necessities to Macau, and on 14 January 1840 the Emperor asked all foreigners to halt material assistance to the British.
Split into simpler sentences: The governor refused for fear that the Chinese would discontinue supplying food and other necessities to Macau. On 14January 1840, the Emperor asked all foreigners to halt material assistance to the British.