How do I verify a Polish company's existence?

Hi, I'm from Viet Nam and this is the first time I work with a partner from Polish. They gave me their business certification but it seem not real. How can I check their certification? This is the copany name

SPÓŁDZIELNIA MEGAPLON
ADDRESS: 92016 longjumaux

You need the REGON number or the KRS number and then you can request a report for about 100 zloty.

There are several companies called Megaplon, some active and some closed

That address doesn't look right. There is no x in Polish place names. There is a Polish post code 92-016 in Lodz, hut it is also the postcode of Nanterre, a tough suburb of Paris, and a village in Sicily.

@cms neuf

Thank you for sharing

After asking again they said that the previous address is their bank add. This is their copany address: WOŁCZYŃSKA 64B46-250 KRZYWICZYNY, POLAND

And they also send me their Regon number. How I can check the regon number is legit or not?

Here is their information that they have send me

COMPANY NAME AND LEGAL FORM: SPÓŁDZIELNIA MEGAPLON
ADDRESS: WOŁCZYŃSKA 64B46-250 KRZYWICZYNY, POLAND
NIP: 8961546158
REGON: 363044275
REPRESENTED BY: CELLIER BENJAMIN
DESIGNATION SALES AND EXPORT MANAGER

You check that they are in the KRS (national court register). I checked for you. They are there. Their KRS number is 0000587423. Here is the entry for them.

wyszukiwarka-krs.ms.gov.pl/dane-szczegolowe-podmiotu;numerKRS=pCEiFNrU2%2BWYcEudxSud2Q%3D%3D;typ=P

You can subscribe to a website where you can view their financial history. They have a free trial which is probably enough for your purposes.

rejestr.io/krs/587423/spoldzielnia-megaplon/sprawozdania/s/3090878

Thank you so much. I have been searching about them for week.

Wish you well