Hi Mel Mercado in Singapore the market for Frozen food in Singapore is huge some of the leading company in the market like Tai Sing, Ben Foods (S) Pte Ltd, Auric Pacific, Pan Ocean, just to name a few.
Even though the domestic market is small the turnover is quite staggering due to the fact that most of the Singapore company had diverse business interests ranging from the distribution of fast moving consumer food and non-food products, food manufacturing and retailing, the management of restaurant and food court operations and other strategic investments including property investment. They also export their products to various countries throughout Asia including Malaysia, Indonesia, Thailand, Hong Kong SAR China, Middle east etc. Like they say if they depend solely on domestic market of 5 million peoples in Singapore most of company will "eat grass" a local phrase of saying that it is not feasibility to just concentrate on domestic market. As for Philippine I do not have data, since you are a Filipino you cold advise me on that issue.