On what date was it announced that an asset was acquired for US$9 Million?
CREATE TABLE table_1373542_1 (
    date_announced VARCHAR,
    reported_cost VARCHAR
)
SELECT date_announced FROM table_1373542_1 WHERE reported_cost = "US$9 million"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: On what date was it announced that an asset was acquired for US$9 Million? ### Input: CREATE TABLE table_1373542_1 (
    date_announced VARCHAR,
    reported_cost VARCHAR
) ### Response: SELECT date_announced FROM table_1373542_1 WHERE reported_cost = "US$9 million"