The second way is called the DEA Process.
The process starts with ethylene oxide (EO). EO reacts with liquid ammonia (NH3) to produce monoethanolamine, diethanolamine, and triethanolamine. Diethanolamine (DEA) is then oxidized using sodium hydroxide (NaOH) and a copper-based catalyst to produce disodium iminodiacetic acid (DSIDA). DSIDA is reacted with phosphorous chloride (PCl3) and formaldehyde (HCHO) to produce N-phosphonomethyliminodiacetic acid (PMIDA). PMIDA is then oxidized using sodium molybdate, hydrogen peroxide, and iron (II) sulphate to produce the desired product, glyphosate.