The E1 visa for Treaty Traders allows nationals from countries that maintain an appropriate treaty of commerce and navigation with the U.S., to enter the U.S. to conduct trade between the U.S. and their home country.

Requirements: Treaty Trader
1. The applicant must be a national of a treaty country. 
Treaty countries currently include:
Argentina, Australia, Austria, Belgium, Bolivia, Bosnia and Herzegovina, Brunei, Canada, Chile, China (Taiwan), Colombia, Costa Rica, Croatia, Denmark, Estonia, Ethiopia, Finland, France, Germany, Greece, Honduras, Iran, Ireland, Israel, Italy, Japan, Jordan, South Korea, Latvia, Liberia, Luxembourg, Macedonia, Mexico, the Netherlands, Norway, Oman, Pakistan, Paraguay, Philippines, Singapore, Slovenia, Spain, Suriname, Sweden, Switzerland, Thailand, Togo, Turkey, the United Kingdom and Yugoslavia.

The trading firm for which the applicant is coming to the U. S. must have the nationality of the treaty country; the international trade must be "substantial" in the sense that there is a sizable and continuing volume of trade; the trade must be principally between the U.S. and the treaty country, which is defined to mean that more than 50 percent of the international trade involved must be between the U.S. and the country of the applicant's nationality; trade means the international exchange of goods, services, and technology. Title of the trade items must pass from one party to the other; and the applicant must be employed in a supervisory or executive capacity, or possess highly specialized skills essential to the efficient operation of the firm. Ordinary skilled or unskilled workers do not qualify.

The E2 Treaty Investor visa allows nationals from countries that have treaties of commerce and navigation or bilateral agreements in effect with the U.S., to enter the U.S. for the purpose of directing and developing the operations of an enterprise they have invested in, or are in the process of investing a substantial amount of capital.

Requirements: Treaty Investor
The investor, either a real or corporate person, must be a national of a treaty country.  The following is a list of countries which may do E2 visas. 
1. You must be a national of a country that maintains treaties of navigation and commerce with the U.S. for E2 visa purposes.

Treaty countries currently include:
Albania, Argentina, Armenia, Australia, Austria, Azerbaijan, Bahrain, Bangladesh, Belgium, Bolivia, Bosnia and Herzegovina, Bulgaria, Cameroon, Canada, Chile, China (Taiwan), Colombia, Congo (Brazzaville), Congo (Kinshasa), Costa Rica, Croatia, Czech Republic, Ecuador, Egypt, Estonia, Ethiopia, Finland, France, Georgia, Germany, Grenada, Honduras, Iran, Ireland, Italy, Jamaica, Japan, Jordan, Kazakhstan, South Korea, Kyrgyzstan, Latvia, Liberia, Lithuania, Luxembourg, Macedonia, Mexico, Moldova, Mongolia, Morocco, the Netherlands, Norway, Oman, Pakistan, Panama, Paraguay, Philippines, Poland, Romania, Senegal, Singapore, Slovak Republic, Slovenia, Spain, Sri Lanka, Suriname, Sweden, Switzerland, Thailand, Togo, Trinidad & Tobago, Tunisia, Turkey, Ukraine, United Kingdom, and Yugoslavia.

The investment must be substantial. It must be sufficient to ensure the successful operation of the enterprise. The percentage of investment for a low-cost business enterprise must be higher than the percentage of investment in a high-cost enterprise;

The investment must be a real operating enterprise. Speculative or idle investment does not qualify. Uncommitted funds in a bank account or similar security are not considered an investment;
The investment may not be marginal. It must generate significantly more income than just to provide a living to the investor and family, or it must have a significant economic impact in the United States;

The investor must have control of the funds, and the investment must be at risk in the commercial sense. Loans secured with the assets of the investment enterprise are not allowed; and the investor must be coming to the U.S. to develop and direct the enterprise. If the applicant is not the principal investor, he or she must be employed in a supervisory, executive, or highly specialized skill capacity. Ordinary skilled and unskilled workers do not qualify.