CREATE TABLE table_30305 ("Year Location" TEXT, "Mens Singles" TEXT, "Womens Singles" TEXT, "Mens Doubles" TEXT, "Womens Doubles" TEXT)

When and where did Chen Qi win in men singles?
SELECT "Year Location" FROM table_30305 WHERE "Mens Singles" = 'Chen Qi'
SELECT "Year Location" FROM "table_30305" WHERE "Mens Singles" = 'Chen Qi'