G.R. No. 80389 - Hua Bee Shirt Factory vs. National Labor Relations Commission

Philippine Packing Corporation (appellant) is a domestic corporation engaged in the cultivation, growing, and canning of pineapples in Mindanao for both the local and international markets.
Annually, the corporation produces approximately 120,000 tons of pineapples. Out of this, about 50,000 tons of fresh fruit, not processed for canning (and therefore not subject to tax), are disposed of as fresh produce. The remaining produce is processed into various forms including sliced pineapple, pineapple chunks, crushed pineapple, and pineapple juice.
The canning process involves several steps: harvesting, washing, peeling, and sorting of fruits; slicing, cubing, or crushing; placement into cans; removal of residual air; addition of heavy syrup (except in the case of pineapple juice); closing of cans; application of heat for sterilization; and rapid cooling.
The preservation process is deemed necessary due to the high volume of production (170,000 tons including both fresh and processed outputs) and the perishable nature of pineapple fruits, which renders them unsalable within a short period unless processed.

On October 15, 1948, Philippine Packing Corporation sent a letter to then Collector of Internal Revenue Bibiano Meer questioning the imposition of a 5% tax on its pineapple products.

The corporation argued that under Section 188 (b) of the Internal Revenue Code, its operations were entirely agricultural and should thus be exempt from such tax.

Collector Meer replied affirmatively, stating that sales in the country of the produced pineapple products were exempt from the sales tax prescribed in Section 186 in accordance with Section 188 (b) of the Code.

On January 13, 1954, a subsequent letter was received by the petitioning corporation, this time from Deputy Collector Silverio Blaquera, demanding payment amounting to P196,060.69 for fixed and percentage taxes, surcharges on domestic sales from October 1948 to September 1953, plus an additional penalty of P1,000 for alleged violations of the Internal Revenue Law.
The petitioner first contested the tax assessment before the then Board of Tax Appeals (later succeeded by the Court of Tax Appeals under Republic Act No. 1125).

On January 31, 1955, the Court of Tax Appeals affirmed the Collector’s assessment.
On April 11, 1955, the Court of Tax Appeals denied the corporation’s motion for reconsideration.

Philippine Packing Corporation then elevated the matter to the Supreme Court for review, focusing on the main issue of tax exemption under Section 188 (b) of the Internal Revenue Code.

After the Supreme Court rendered its decision on December 26, 1956, the Collector of Internal Revenue filed a motion for reconsideration.
The motion argued that Republic Act No. 1612, passed on August 24, 1956, which amended Section 188 (b) of the Tax Code, indicated a congressional intent to limit the exemption solely to agricultural products “in their original form,” thereby excluding products that had undergone a manufacturing process.
The Court, however, noted that as RA No. 1612 was not retroactive, it could only affect transactions occurring after its enactment, thereby leaving the earlier transactions unaffected.

The central legal issue is whether the domestic sales of pineapples and pineapple products produced and processed by Philippine Packing Corporation are exempt from tax under Section 188 (b) of the Internal Revenue Code.

Does the processing or canning of agricultural produce—intended primarily as a preservation method—alter the fundamental nature of the product from an agricultural product to a manufactured good subject to tax?
How should the statutory language “whether in their original state or not” (as in the older version of Section 188 (b)) be interpreted in relation to large-scale agricultural production that incidentally requires preservation through processing?

Whether the amendment brought about by Republic Act No. 1612, which omits the phrase “or not” and thereby limits the tax exemption to products “in their original form,” should apply retroactively to affect transactions that occurred before its enactment.