I have no knowledge on those element grades but did some search...

I have no knowledge on those element grades but did some search on the grade and found following:

The grade (g/t or grams per tonne) considered good for gallium, indium, germanium, and barium can vary depending on the market demand, extraction costs, and other economic factors. Here are some general guidelines:

Gallium

Typical Grades: Gallium is often found in trace amounts in bauxite and zinc ores. Grades of 30-50 g/t (grams per tonne) are considered economically viable for extraction from bauxite, whereas higher grades may be needed for other sources.

Indium

Typical Grades: Indium is typically found in zinc ores, and a grade of 50-100 g/t is generally considered good. Higher grades are more economically attractive.

Germanium

Typical Grades: Germanium is usually recovered from zinc ores and coal deposits. Grades of 100-200 g/t in zinc ores and around 50 g/t in coal deposits are considered good.

Barium

Typical Grades: Barium is most commonly extracted from barite (barium sulfate) deposits. Good grades for barite are typically 4,000-5,000 g/t (0.4-0.5% Ba) or higher. Lower grades can also be processed if the deposit is large and the extraction costs are low.


And compared to our results, I think In and Ge are good, Ga is very good, and Ba is extremely good. Overall this is a very good ann. DYOR. GLTAH.