This Le Bon presented his ideas clearly and creatively. With his simple adjustments, some existing, mature technologies resolved several major technical obstacles.
Joseph, after just hearing it once, was basically certain that this technological proposal should be feasible.
After explaining the kerosene refining technology, Le Bon also showcased his improvements on oil lamps, making them more suitable for using kerosene as fuel—the existing oil lamps were designed for peanut oil and whale oil, and according to his tests, using kerosene directly would damage the lampshades.
This meticulousness and caution made Joseph even more satisfied with him.
However, the fourth bidding company was not simple either.
This was a chemical factory named "Lalosel United Company," whose sulfuric acid production workshop in Paris could meet nearly half of France's market demand, with an annual sales revenue of up to 150,000 francs.
