| 92919 | Management training services | |
| 83161 | Managing and monitoring communication networks and connected hardware to diagnose networking problems and gathering statistics. | |
| 28261 | Manchons, whether or not slit, of fur felt, for headgear | |
| 28261 | Manchons, whether or not slit, of wool felt, for headgear | |
| 01324 | Mandarins, fresh or chilled | |
| 21419 | Mandarins, fresh, chilled or dried | |
| 21499 | Mandarins, prepared or preserved in syrup, water, chemicals or alcohol | |
| 38320 | Mandolas | |
| 38360 | Mandolin mechanisms (i.e., pegs and worm and tooth wheels) | |
| 38320 | Mandolins | |
| 73114 | Man-drawn passenger vehicles, rental of, without operator | |
| 65114 | Man-drawn vehicles, road transport services of freight by | |
| 64117 | Man-drawn vehicles, road transport services of passengers by | |
| 44320 | Mandrels for billet-piercing mills | |
| 44251 | Mandrels for metalworking machine tools | |
| 34250 | Manganates, metal | |
| 34270 | Manganese borates (excl. natural) | |
| 34280 | Manganese boride | |
| 34280 | Manganese carbide | |
| 34240 | Manganese carbonates, artificial | |
| 34250 | Manganese chromate | |
| 34240 | Manganese dichloride | |
| 34220 | Manganese dioxide (excl. natural ores) | |
| 34270 | Manganese hydrogenarsenate | |
| 34220 | Manganese hydroxides (excl. natural ores) | |
| 34240 | Manganese orthophosphate | |
| 34220 | Manganese oxide (excl. natural ores and manganese hydroxides) | |
| 35420 | Manganese peptonates | |
| 34240 | Manganese pyrophosphate | |
| 34400 | Manganese resinate | |
| 34220 | Manganese saline hydroxide (excl. natural saline hydroxide) | |
| 34220 | Manganese saline oxide (excl. natural ores) | |
| 34220 | Manganese sesquioxide (excl. natural ores) | |
| 34270 | Manganese silicate (excl. natural manganese silicate) | |
| 16190 | Manganese silicate, natural (excl. precious) | |
| 34280 | Manganese silicide | |
| 34240 | Manganese sulphate | |
| 34320 | Manganese tannate | |
| 34270 | Manganese tetraborate | |
| 41603 | Manganese, whether or not wrought | |