Even without a corporate income tax companies would still generate tax income in foreign countries where they sell goods and services, e.g. VAT/sales tax. They would also pay property tax on any physical presence they maintain and probably a myriad of other taxes depending on the country.
While the tax incidence (where the burden lands) of various taxes is a thorny question subject to much debate in the literature I don’t think it’s especially controversial to say that sales, property, and wage taxes are likely to have different incidences than a tax on profits.
