1. **"ore"** - Should be capitalized in "Manganese Ore Processing Plant" when referring to the title (i.e., "Manganese Ore" should be "Manganese Ore Processing Plant"). 2. **"lmpact"** - The letter "l" is incorrectly used; it should be "Impact" (i.e., "Vertical Shaft lmpact Crusher" should be "Vertical Shaft Impact Crusher"). 3. **"high-grade"** - Should use a hyphen when used as an adjective (i.e., "high grade concentrate" should be "high-grade concentrate"). 4. **"gear"** - Mention of "Text" in "the existence of much slurry and fines, jigging and cleaning table can be used for secondary separation." should clarify that "cleaning tables" are pluralized (should be "cleaning tables"). 5. **"chalcopyrite, pyrite and manganese"** - Add a comma before "and" for clarity in lists (i.e., should be "chalcopyrite, pyrite, and manganese"). 6. **"to remove volatile ingredient"** - Should be pluralized as "ingredients" (i.e., "remove volatile ingredients"). 7. **"demand Services"** - Should be "Demand Services" to follow capitalization consistency. 8. **"as fine as several microns, so it is hard to separate"** - The term "so" could be interpreted as somewhat informal. It might be clearer to use "therefore" (i.e., "as fine as several microns; therefore, it is difficult to separate the ores to get high-grade concentrate"). 9. **"smelting shall be adopted"** - Consider changing "shall" to "should" for contemporary usage (i.e., "smelting should be adopted"). 10. **"separate chalcopyrite, pyrite and manganese"** - Again, a comma is needed before "and" (should be "chalcopyrite, pyrite, and manganese"). 11. **"minimizing customer wait times"** - Consider pluralizing "wait time" in context as it reflects multiple instances (i.e., "minimizing customer wait times" is correct). 12. **"EPCO"** - should be spelled out as "EPCO". 13. **"manganese carbonate ore"** - Missing article in introductory phrases where ore types are first mentioned. Consistency in capitalization can be reviewed; "Manganese Carbonate Ore" would match other usages. These are the main spelling, punctuation, and grammar issues found in the text.