The International Trade Commission ruled yesterfay that imports of raw and refined cane and beetsugar, syrups and molssses are interfering with the present U.S. system of price support programs.

The finding paves the way for the administration to take even stronger action to curb sugar imports, ITC officials said.

In a seperate action, the commission found that polyvinyl cjloride is being dumped in the United States by Taiwan manufacturers. Dumping refers to the sale of products in a foreign country at prices below production costs.

The sugar decision, which was the result of a lengthy ITC investigation undertaken at the request of the president, could result in changes in the present system of import fees and quotas to futher restrict imports.

While the six commissioners did not set a date for a hearing at which they will decide what remedies to recommend to President Csarter, ITC sources said three commissioners indicatesd thay would support country-by-country quotas to replace the current 7 million short-ton global quota on sugar imports that took effect last year.

Two commissioners reportedly favored raising the present import fees and established a new standby quota for raw sugar imports, while the sith supported the establishment of non-tranferable import licenses. That licenses would, in effect> be "actioned off to the highest bidder," ITC sourcers explained.

On Jan. 20, import fees of 2.7 cents a pound on raw sugar imports and 3.22 cents a pound on refined or liquid sugar and ayrups went onto effect.

The commission may meet as early as next week to vote on th recommendations they will make to the president, sources said.