Who ships to Paraguay?
Maersk Line, USA Inter Cargo, ZIM Integrated Shipping Ltd, and MSC all ship to Paraguay, specializing in larger shipment via ocean cargo freight liners. There are other option for this mode of transport, of course, such as Shipping Worldwide, Russell Freight and Morgan Shipping, all of which are good companies to work with in this capacity. You have so many choices, in fact, that you can get several quotes from the various companies and compare them at your leisure. For smaller parcels, you may want to look at FedEx, UPS or ISP Parcel as they cater to the more managable sized shipments.
Security concerns when shipping to Paraguay
Traveling within Paraguay is not the safest place, and this applies to both tourists and shipping companies. The larger cities are typically safer than the more rural, undeveloped areas of the country side where some bands of rebels roam. This isn't to say that they target shipping trucks but that they do sometimes get caught up in the mix and packages can become lost on their way to their new home. Because of this, it is strongly advisable to that you get both a tracking number and insurance on your shipment to cover your costs in case it is damaged or lost.
Transit times when shipping to Paraguay
It is best to talk to your shipping company for more accurate shipping expectations, but as a rule of thumb, you can typically pay to have your shipments arrive faster than they would if you went with a base line delivery. Some companies will offer more options for the speed of transit, depending on the size of the company and the volume it does the region from your original location. Speaking of original locations, that is going to be a big determining factor in your transit time as well, because shipping from Brazil will be much faster than shipping from Japan due to shear proximity.