Sol-Ark 8kw vs Sunsynk 8kw Inverters

Does anyone know the story behind these two inverters?
I was under the impression that Sol-Ark 8kw was designed and built in the US but after coming across the Sunsynk they seem to be the same inverter with some tweaks. Internal pictures of the connection end also seem identical.
Specs seem the same. The Sunsynk is listed having UL1741 certificate and listed under $2000 (South Africa price is the only place I have found it listed) vs. $6495 for the Sol-Ark
Sunsynk:
https://powerforum.co.za/topic/3843-sunsynk-8kw-hybrid-inverter-feedback/?tab=comments#comment-56512
Spec Sheet Attached
Sol-Ark: https://www.altestore.com/static/datafiles/Others/Sol-Ark-Specifications%20June%202019.pdf
I have reached out to Sunsynk for additional details on the inverter and where they are available but they have been cagey with their responses when I mentioned I am located in the US.
I have the impression they are they same unit with only the branding and split phase features being the difference. Although a $4400 seems like a steep price to pay for split phase vs. leveraging a transformer.
I was under the impression that Sol-Ark 8kw was designed and built in the US but after coming across the Sunsynk they seem to be the same inverter with some tweaks. Internal pictures of the connection end also seem identical.
Specs seem the same. The Sunsynk is listed having UL1741 certificate and listed under $2000 (South Africa price is the only place I have found it listed) vs. $6495 for the Sol-Ark
Sunsynk:

https://powerforum.co.za/topic/3843-sunsynk-8kw-hybrid-inverter-feedback/?tab=comments#comment-56512
Spec Sheet Attached
Sol-Ark: https://www.altestore.com/static/datafiles/Others/Sol-Ark-Specifications%20June%202019.pdf
I have reached out to Sunsynk for additional details on the inverter and where they are available but they have been cagey with their responses when I mentioned I am located in the US.
I have the impression they are they same unit with only the branding and split phase features being the difference. Although a $4400 seems like a steep price to pay for split phase vs. leveraging a transformer.
Comments
Pricing may also be tailored to what the market will bare, profit margins, taxes, labor costs, tariffs and so forth will also be reflected in retail costs. The U.S. is an entirely different market to S.A. so although the inverters may well be visually identical and possibly come from the same factory , most likely in China, the retail price in one market can't really be compared to another.
Second system 1890W 3 × 300W No name brand poly, 3×330 Sunsolar Poly panels, Morningstar TS 60 PWM controller, no name 2000W inverter 400Ah LFP 24V nominal battery with Daly BMS, used for water pumping and day time air conditioning.
5Kw Yanmar clone single cylinder air cooled diesel generator for rare emergency charging and welding.