Ryobi Limited is a Japanese manufacturer of components for automobiles, electronics, and telecommunications industries. It also sells printing equipment, power tools, and builders' hardware. Ryobi Power Tools and Ryobi Outdoor Power Equipment are brands of Techtronic Industries, used under license from Ryobi Limited.
Techtronic Industries Company Limited (TTI Group or TTI) is a Hong Kong based multinational company that designs, produces, and markets power tools; outdoor power equipment; hand tools, and floor care appliances. It pioneered cordless power tools powered by lithium-ion rechargeable batteries.
TTI manufactures in China, Vietnam, the U.S., Mexico and Europe, and in 2022, had annual sales of US$13.3 billion.
I would think they are assembled in the USA using a mix US and foreign made parts. Not 100% usa made.