| agglomeration of industries, concentration of industries | penumpuan industri | AEKO |
| producer industries | industri pengeluar | EKOI |
| Pioneer Industries Ordinance 1957 | Ordinan Industri Perintis 1957 | EKOI |
| rubber-based industries | industri berasaskan getah | EKOI |
| printing, publishing and allied industries | industri percetakan, penerbitan dan berkaitan | EKO |
| primary iron and steel industries | industri besi dan keluli utama | EKOI |