switch (FEAT_INDUSTRIES, SELF, blast_furnace_produce_economy_0,
                [
                        STORE_PERM(
                            LOAD_PERM(10) + 1000,
                                10
                        ),
                        STORE_PERM(
                            max(LOAD_PERM(1), (incoming_cargo_waiting("IORE") > 0) * current_date),
                                1
                        ),
                        STORE_PERM(
                            LOAD_PERM(10) + 1000,
                                10
                        ),
                        STORE_PERM(
                            max(LOAD_PERM(2), (incoming_cargo_waiting("COAL") > 0) * current_date),
                                2
                        ),
                        STORE_PERM(
                            LOAD_PERM(10) + 1000,
                                10
                        ),
                        STORE_PERM(
                            max(LOAD_PERM(3), (incoming_cargo_waiting("SCMT") > 0) * current_date),
                                3
                        ),
                    STORE_PERM(0, 9),
                    STORE_PERM(100, 10),
                ]) {
            blast_furnace_simple_produce_0;
        }