Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_2263674_1 ( portfolio VARCHAR, romanised_name VARCHAR )

### Question ###
What was Anthony Leung Kam-Chung previous position?

### Accurate SQL ###

SELECT portfolio FROM table_2263674_1 WHERE romanised_name = "Anthony Leung Kam-chung"