Use a semicolon to separate items and the word "and" at the last item, as in the example below.
Factors behind the expected growth are 1) limited downside; 2) an ongoing consumption recovery; and 3) moderate earnings growth prospects for 2H22 and 2023.No colon is placed after the word that comes before a list, as in the example below.
We expect lower earnings due to 1) limited downside; 2) etc.
Example: The company's key plans in the next three years are 1) to strengthen the efficiency of its existing businesses and branches; 2) to enhance synergy within the group; and 3) seeking more opportunities in the region.