@GrandPapaDau , your post seems to suggest that
(1) you have two sources of income-- (a) as an employee in the USA receiving a W-2 and (b) as a self-employed / consultant receiving 1099-MISC from US sources and statement of payment from foreign sources.
(2) the foreign source income is earned for work done in Taiwan and China where the income is taxed by the local taxing authorities.
The question here regarding the treatment of the foreign income is whether this is as an "employee" or as"self-employed". This will determine whether it is to be reported on schedule-C or as wages with"statement of earnings". Here you need to tell us your contractual or other relationship with the foreign entities ( that paid you ). Also what type of entity -- public / private etc. Just because taxes were collected at source does NOT make it an employer/employee relationship.
Another question of import ( for purposes of eligibility to exclude the foreign income from US taxes ) is how long did you stay abroad to complete these "jobs" --- from your post it does not sound as if you you were abroad continuously for more than 12 months .
Please answer these questions and I will come back and follow up.
In general , though if all things work out , I would expect to see filing of schedule-C covering the gross earnings from all sources and expenses covering all expenditure for this stream of income. Foreign taxes paid ( and when finalized) may be eligible for foreign tax credit or deduction or other treatment, depending the exact facts and circumstances. Also note that , absent a tax treaty allowance, self-employment taxes SECA ( equivalent of FICA for wage earners ) would be in play here.
