| Classification of Product Technology Complexity | HS CODE |
| Higher Complexity (PRODY ≥ 57,810) | HS902110, HS902150, HS845610, HS902129, HS853530, HS844130, HS846140, HS901811, HS846090, HS844010, HS901520, HS845730, HS844819 (A total of 21 kinds of mechanical and electrical products) |
| High Complexity (57,810 > PRODY ≥ 44,924) | HS870324, HS848620, HS841199, HS870422, HS870423, HS840890, HS902780, HS902790, HS902190, HS880230, HS902139, HS842890, HS902131 (A total of 161 kinds of mechanical and electrical products) |
| Medium Complexity (44,924 > PRODY ≥ 32,038) | HS870323, HS854239, HS851762, HS870332, HS880240, HS870899, HS880330, HS870840, HS844399, HS850440, HS848180, HS901890, HS841191 (A total of 583 kinds of mechanical and electrical products) |
| Low Complexity (32,038 > PRODY ≥ 19,151) | HS854231, HS851770, HS847130, HS854232, HS847330, HS847170, HS870829, HS870322, HS901380, HS847150, HS854140, HS853710, HS852990 (A total of 254 kinds of mechanical and electrical products) |
| Lower Complexity (PRODY < 19,151) | HS851712, HS852872, HS854430, HS841510, HS841810, HS852721, HS901390, HS851829, HS851650, HS841451, HS841821, HS900691, HS845020 (A total of 27 kinds of mechanical and electrical products) |