Frequently Asked Questions

Advice and answers from the OSALO Team


Exactly, we are a manufacturing & trading company. We have our factory in Huizhou, Guangdong, and can manufacture, customize, and supply your desired calculators.
OSALO is a world-renowned calculator brand factory, the main products are scientific calculators, tax calculators, check&correct calculators, desktop calculators, PC key calculators, and pocket calculators. Almost all calculators on the market can be found here, and we also provide customized product services.
OSALO has sold to more than 80 countries and collected millions of clients from over 150 countries globally. Also, we have agents in United Arab Emirates, Thailand, Bangladesh, Ghana etc
1) Focus on the calculator for 18 years.
2) The product quality is good, the brand is guaranteed, the price is affordable.
3) In-stock hot sales, stable supply, and short-time delivery.
4) Rapid product development helps you win the market.
5) Strong custom production capacity and quality trading services. 


Sure. Our products have passed the international authoritative qualification certification. We have the following certificates: CE, UKCA, ISO9001, RoHS.
Products are all tested by corresponding performance testing equipment in the factory before shipment.
Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
Firstly, let us know your requirements or application. Secondly, We quote according to your requirements or our suggestions. Thirdly, the customer confirms the samples and places a deposit for a formal order. Fourthly We arrange the production.
It takes 2-3 days for a sample and 1-2 weeks or more for mass production for more orders. The longest delivery time is 40-45 days.
Of course, you can send your inquiry to us and we will find it for you on time.
Yes, we often offer discounts. Different products also have different offers. If you want to get more product preferential policies, please feel free to contact us to get preferential treatment.


Yes, we have a private label service and the MOQ is 2000 pcs.
Low MOQ for stock spot, 1pc for sample checking is available. Custom MOQ is 2000pcs.
Yes, we have custom service. Our production department develops items based on your request.
Yes, we have customized experience and a specialized R8D department. Please let me know vour customized specification.


Customers confirm the order with a certain quantity and pay the deposit.
We supply samples, but their fees and freight charges should be borne by the customer.
Please help us to provide photos or videos that can show the quality problem of our products. We need to know the exact problem and negotiate a solution with you.
You can send us a message directly on the official website, or send us an email at We’ll get back to you within 24 hours.
Yes, of course. We welcome customers to visit the factory, and will provide customers with reception services according to the situation.


Generally, 30% deposit in advance and 70% payment before shipment.
Payment can be by T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, or Western Union. Cash. or Escrow.


lt depends on your order. Normally, it could be shipped by sea, by air, or by express(EMS, UPS, DHL, TNT, FEDEX and etc.), please confirm with us before placing orders.