Workers at the Kim Chaek Iron and Steel Complex attained their goal of steel production.

Its workers and technologists made a breakthrough in producing highly-efficient fireproof materials by launching a massive technological innovation movement, and developed and introduced a new method of operating oxygen converter.

The Hwanghae Iron and Steel Complex also fulfilled its production plan ahead of schedule as of December 8.

Its workers have made brisk technological innovations to improve the quality of molten iron, raise the operating rate of furnace and turn out more molten iron per charge.

They have over-fulfilled their daily production plan by waging a socialist emulation drive among shifts and a collective innovation movement in which shifts help each other.

The Ongjin Kumpho Mine, Ramjong Mine, Saenggiryong Mine and others scored high production records and thus attained their goals for the 80-day campaign ahead of schedule.